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class="vector-toc-numb">2</span> <span>Planning and design</span> </div> </a> <ul id="toc-Planning_and_design-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Construction_and_modification" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Construction_and_modification"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Construction and modification</span> </div> </a> <ul id="toc-Construction_and_modification-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Dam_instability" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Dam_instability"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Dam instability</span> </div> </a> <ul id="toc-Dam_instability-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collapse_and_flood_wave" class="vector-toc-list-item vector-toc-level-1 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vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Aftermath subsection</span> </button> <ul id="toc-Aftermath-sublist" class="vector-toc-list"> <li id="toc-Dam_safety_legislation" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Dam_safety_legislation"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.1</span> <span>Dam safety legislation</span> </div> </a> <ul id="toc-Dam_safety_legislation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Licensing_of_civil_engineers" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Licensing_of_civil_engineers"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2</span> <span>Licensing of civil engineers</span> </div> </a> <ul id="toc-Licensing_of_civil_engineers-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Analysis" class="vector-toc-list-item vector-toc-level-1 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href="https://geohack.toolforge.org/geohack.php?pagename=St._Francis_Dam&params=34_32_49_N_118_30_45_W_region:US-CA_type:landmark"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">34°32′49″N</span> <span class="longitude">118°30′45″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-nondefault"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">34.54694°N 118.51250°W</span><span style="display:none"> / <span class="geo">34.54694; -118.51250</span></span></span></a></span></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Former dam in Los Angeles County, California, US</div> <p class="mw-empty-elt"> </p> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Dam in California, U.S.</div><style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vcard"><tbody><tr><th colspan="2" class="infobox-above fn org" style="background-color:skyblue; color:inherit;">St. Francis Dam</th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:St_Francis_Dam_crop.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/St_Francis_Dam_crop.jpg/350px-St_Francis_Dam_crop.jpg" decoding="async" width="350" height="185" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/St_Francis_Dam_crop.jpg/525px-St_Francis_Dam_crop.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/46/St_Francis_Dam_crop.jpg/700px-St_Francis_Dam_crop.jpg 2x" data-file-width="1400" data-file-height="738" /></a></span><div class="infobox-caption">View of the dam looking north, with water in its reservoir, in February 1927</div></td></tr><tr><th scope="row" class="infobox-label">Location</th><td class="infobox-data"><a href="/wiki/Los_Angeles_County,_California" title="Los Angeles County, California">Los Angeles County, California</a>, U.S.</td></tr><tr><th scope="row" class="infobox-label">Coordinates</th><td class="infobox-data"><span class="geo-inline"><style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=St._Francis_Dam&params=34_32_49_N_118_30_45_W_region:US-CA_type:landmark"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">34°32′49″N</span> <span class="longitude">118°30′45″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-nondefault"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">34.54694°N 118.51250°W</span><span style="display:none"> / <span class="geo">34.54694; -118.51250</span></span></span></a></span></span></td></tr><tr><th scope="row" class="infobox-label">Construction began</th><td class="infobox-data">1924<span class="noprint">; 101 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1924</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Opening date</th><td class="infobox-data">1926<span class="noprint">; 99 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1926</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Demolition date</th><td class="infobox-data">1929<span class="noprint">; 96 years ago</span><span style="display:none"> (<span class="dtend">1929</span>)</span></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:skyblue; color:inherit;">Dam and spillways</th></tr><tr><th scope="row" class="infobox-label">Impounds</th><td class="infobox-data"><a href="/wiki/Los_Angeles_Aqueduct" title="Los Angeles Aqueduct">Los Angeles Aqueduct</a><br /><a href="/wiki/San_Francisquito_Creek_(Santa_Clara_River)" class="mw-redirect" title="San Francisquito Creek (Santa Clara River)">San Francisquito Creek</a></td></tr><tr><th scope="row" class="infobox-label">Height</th><td class="infobox-data">185 ft (56 m)</td></tr><tr><th scope="row" class="infobox-label">Height (foundation)</th><td class="infobox-data">205 ft (62 m)</td></tr><tr><th scope="row" class="infobox-label">Length</th><td class="infobox-data">main dam 700 ft (210 m)<br />wing dike 588 ft (179 m)</td></tr><tr><th scope="row" class="infobox-label">Elevation at crest</th><td class="infobox-data">parapet 1,838 ft (560 m)<br />spillway 1,835 ft (559 m)</td></tr><tr><th scope="row" class="infobox-label">Width (crest)</th><td class="infobox-data">16 ft (4.9 m)</td></tr><tr><th scope="row" class="infobox-label">Width (base)</th><td class="infobox-data">170 ft (52 m)<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /></td></tr><tr><th scope="row" class="infobox-label">Parapet width</th><td class="infobox-data">16 ft (4.9 m)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Hydraulic_head" title="Hydraulic head">Hydraulic head</a></th><td class="infobox-data">182 ft (55 m)</td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label">Dam volume</th><td class="infobox-data">main dam 130,446 cu yd (99,733 m<sup>3</sup>)<br />wing dike 3,826 cu yd (2,925 m<sup>3</sup>)</td></tr><tr><th scope="row" class="infobox-label">Spillway type</th><td class="infobox-data">uncontrolled overflow</td></tr><tr><th colspan="2" class="infobox-header" style="background-color:skyblue; color:inherit;">Reservoir</th></tr><tr><th scope="row" class="infobox-label">Total capacity</th><td class="infobox-data">38,168 acre⋅ft (47.080<span style="margin-left:0.2em">×<span style="margin-left:0.1em">10</span></span><s style="display:none">^</s><sup>6</sup> m<sup>3</sup>)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Drainage_basin" title="Drainage basin">Catchment area</a></th><td class="infobox-data">37.5 sq mi (97 km<sup>2</sup>)</td></tr><tr><th scope="row" class="infobox-label">Maximum length</th><td class="infobox-data">3 mi (4.8 km)</td></tr><tr><th scope="row" class="infobox-label">Maximum water depth</th><td class="infobox-data">182 ft (55 m)</td></tr><tr><td colspan="2" class="infobox-below"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /></td></tr><tr class="mergedrow"><th colspan="2" class="infobox-header"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><div style="border:4px solid #FFC94B; line-height: 1.5; text-align: center;"> <a href="/wiki/California_Historical_Landmark" title="California Historical Landmark">California Historical Landmark</a></div></th></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Official name</th><td class="infobox-data"><i>St. Francis Dam Disaster Site</i><sup id="cite_ref-CHL_1-0" class="reference"><a href="#cite_note-CHL-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Designated</th><td class="infobox-data">April 26, 1978</td></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Reference no.</th><td class="infobox-data">919</td></tr><tr style="display:none"><th colspan="2"> </th></tr><tr class="mergedtoprow"><th colspan="2" class="infobox-header"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><div style="border:4px solid #CCCCCC; line-height: 1.5; text-align: center;"> <a href="/wiki/List_of_National_Memorials_of_the_United_States" class="mw-redirect" title="List of National Memorials of the United States">U.S. National Memorial</a></div></th></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Official name</th><td class="infobox-data">Saint Francis Dam Disaster</td></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Designated</th><td class="infobox-data">March 12, 2019</td></tr><tr style="display:none"><th colspan="2"> </th></tr><tr class="mergedtoprow"><th colspan="2" class="infobox-header"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><div style="border:4px solid #FFEFD5; line-height: 1.5; text-align: center;"> <a href="/wiki/National_monument_(United_States)" title="National monument (United States)">U.S. National Monument</a></div></th></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Official name</th><td class="infobox-data">Saint Francis Dam Disaster</td></tr><tr class="mergedrow"><th scope="row" class="infobox-label">Designated</th><td class="infobox-data">March 12, 2019</td></tr><tr style="display:none"><th colspan="2"> </th></tr><tr style="display:none"><td colspan="2"> </td></tr></tbody></table> <p>The <b>St. Francis Dam</b>, or the <b>San Francisquito Dam</b>, was a <a href="/wiki/Concrete" title="Concrete">concrete</a> <a href="/wiki/Gravity_dam" title="Gravity dam">gravity dam</a> located in <a href="/wiki/San_Francisquito_Canyon" title="San Francisquito Canyon">San Francisquito Canyon</a> in northern <a href="/wiki/Los_Angeles_County,_California" title="Los Angeles County, California">Los Angeles County, California</a>, United States, that was built between 1924 and 1926. The dam <a href="/wiki/Dam_failure" title="Dam failure">failed catastrophically</a> in 1928, killing at least 431 people in the subsequent flood,<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> in what is considered to have been one of the worst American <a href="/wiki/Civil_engineering" title="Civil engineering">civil engineering</a> disasters of the 20th century and the third-greatest loss of life in California history.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>The dam was built to serve the growing water needs of the city of <a href="/wiki/Los_Angeles" title="Los Angeles">Los Angeles</a>, creating a large regulating and storage <a href="/wiki/Reservoir" title="Reservoir">reservoir</a> that was an integral part of the <a href="/wiki/Los_Angeles_Aqueduct" title="Los Angeles Aqueduct">Los Angeles Aqueduct</a>. It was located in San Francisquito Canyon of the <a href="/wiki/Sierra_Pelona_Mountains" class="mw-redirect" title="Sierra Pelona Mountains">Sierra Pelona Mountains</a>, about 40 miles (64 km) northwest of downtown Los Angeles, and approximately 10 miles (16 km) north of the present day city of <a href="/wiki/Santa_Clarita,_California" title="Santa Clarita, California">Santa Clarita</a>. </p><p>However, a defective soil foundation and <a href="/wiki/Product_defect" title="Product defect">design flaws</a> led to the dam's collapse just two years after its completion. Its failure ended the career of <a href="/wiki/William_Mulholland" title="William Mulholland">William Mulholland</a>, the general manager and chief engineer of the Bureau of Water Works and Supply (now the <a href="/wiki/Los_Angeles_Department_of_Water_and_Power" title="Los Angeles Department of Water and Power">Los Angeles Department of Water and Power</a>).<sup id="cite_ref-William_Mulholland_7-0" class="reference"><a href="#cite_note-William_Mulholland-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Background">Background</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=1" title="Edit section: Background"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the <a href="/wiki/History_of_Los_Angeles" title="History of Los Angeles">early years of Los Angeles</a>, the city's water supply was obtained from the <a href="/wiki/Los_Angeles_River" title="Los Angeles River">Los Angeles River</a>. This was accomplished by diverting water from the river through a series of ditches called <i><a href="/wiki/Zanja" title="Zanja">zanjas</a></i>. At that time, a private water company, the Los Angeles City Water Company, leased the city's waterworks and provided water to the city. Hired in 1878 as a <i>zanjero</i> (ditch tender), <a href="/wiki/William_Mulholland" title="William Mulholland">William Mulholland</a> proved to be a brilliant employee who, after doing his day's work, would study textbooks on <a href="/wiki/Mathematics" title="Mathematics">mathematics</a>, <a href="/wiki/Hydraulics" title="Hydraulics">hydraulics</a> and <a href="/wiki/Geology" title="Geology">geology</a>, thereby teaching himself geology and <a href="/wiki/Engineering" title="Engineering">engineering</a>. Mulholland quickly moved up the ranks of the Water Company and was promoted to superintendent in 1886.<sup id="cite_ref-Mulholland_8-0" class="reference"><a href="#cite_note-Mulholland-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>In 1902, the City of Los Angeles ended its lease with the Water Company and took control over the city's water supply. The <a href="/wiki/Los_Angeles_City_Council" title="Los Angeles City Council">Los Angeles City Council</a> established the Water Department – renamed the Bureau of Water Works and Supply in 1911 – with Mulholland as its superintendent. Mulholland was concurrently named as the Bureau's chief engineer following the organization's name change.<sup id="cite_ref-Mulholland_8-1" class="reference"><a href="#cite_note-Mulholland-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Mulholland achieved great recognition among members of the engineering community when he supervised the design and construction of the <a href="/wiki/Los_Angeles_Aqueduct" title="Los Angeles Aqueduct">Los Angeles Aqueduct</a>, which at the time was the longest aqueduct in the world. It used gravity alone to bring the water 233 miles (375 km) from the <a href="/wiki/Owens_Valley" title="Owens Valley">Owens Valley</a> to Los Angeles.<sup id="cite_ref-ASCE_10-0" class="reference"><a href="#cite_note-ASCE-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> The project was completed in 1913, on time and under budget, despite several setbacks. Excluding incidents of <a href="/wiki/Sabotage" title="Sabotage">sabotage</a> by Owens Valley residents in the early years, the aqueduct has continued to operate well throughout its history and remains in operation today.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Planning_and_design">Planning and design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=2" title="Edit section: Planning and design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:St._Francis_dam.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/St._Francis_dam.jpg/220px-St._Francis_dam.jpg" decoding="async" width="220" height="156" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/36/St._Francis_dam.jpg/330px-St._Francis_dam.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/36/St._Francis_dam.jpg/440px-St._Francis_dam.jpg 2x" data-file-width="1920" data-file-height="1362" /></a><figcaption>St. Francis Dam in early 1928</figcaption></figure> <p>It was during the process of building the aqueduct that Mulholland first considered sections of <a href="/wiki/San_Francisquito_Canyon" title="San Francisquito Canyon">San Francisquito Canyon</a> as a potential dam site. He felt that there should be a <a href="/wiki/Reservoir" title="Reservoir">reservoir</a> of sufficient size to provide water for Los Angeles for an extended period in the event of a <a href="/wiki/Drought" title="Drought">drought</a> or if the aqueduct were damaged by an <a href="/wiki/Earthquake" title="Earthquake">earthquake</a>.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> In particular, he favored the area between where the <a href="/wiki/Hydroelectricity" title="Hydroelectricity">hydroelectric power plants</a> Powerhouses <span class="nowrap">No. 1</span> and <span class="nowrap">No. 2</span> were to be built, with what he perceived as favorable <a href="/wiki/Topography" title="Topography">topography</a>, a natural narrowing of the canyon downstream of a wide, upstream platform which would allow the creation of a large reservoir area with a minimum possible dam.<sup id="cite_ref-FOOTNOTERogers199521_13-0" class="reference"><a href="#cite_note-FOOTNOTERogers199521-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> A large camp had been set up to house the workers near this area, and Mulholland used his spare time becoming familiar with the area's geological features. </p><p>In the area where the dam would later be situated, Mulholland found the mid- and upper portion of the western hillside consisted mainly of a reddish-colored <a href="/wiki/Conglomerate_(geology)" title="Conglomerate (geology)">conglomerate</a> and <a href="/wiki/Sandstone" title="Sandstone">sandstone</a> formation that had small veins of <a href="/wiki/Gypsum" title="Gypsum">gypsum</a> interspersed within it. Below the red conglomerate, down the remaining portion of the western hillside, crossing the canyon floor and up the eastern wall, a drastically different rock composition prevailed. These areas were made up of mica <a href="/wiki/Schist" title="Schist">schist</a> that was severely laminated, cross-faulted in many areas, and interspersed with <a href="/wiki/Talc" title="Talc">talc</a>. Later, although many geologists disagreed on the exact location of the area of contact between the two formations, a majority opinion placed it at the inactive San Francisquito Fault line. Mulholland ordered exploratory tunnels and shafts excavated into the red conglomerate hillside to determine its characteristics and had <a href="/wiki/Percolation_test" title="Percolation test">water percolation tests</a> performed. The results convinced him that the hill would make a satisfactory abutment for a dam should the need ever arise.<sup id="cite_ref-FOOTNOTEOutland200254–55_14-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200254–55-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>A surprising aspect of the early geologic exploration came later, when the need for a dam arose. Although Mulholland wrote of the unstable nature of the face of schist on the eastern side of the canyon in his annual report to the Board of Public Works in 1911,<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> this fact was either misjudged or ignored by Stanley Dunham, the construction supervisor of the St. Francis Dam. Dunham testified, at the <a href="/wiki/Inquest" title="Inquest">coroner's inquest</a>, that tests which he had ordered yielded results which showed the rock to be hard and of the same nature throughout the entire area which became the eastern abutment. His opinion was that this area was more than suitable for construction of the dam.<sup id="cite_ref-FOOTNOTECoroner's_Inquest192838–45_16-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest192838–45-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>The population of Los Angeles was increasing rapidly. In 1900 the population was slightly over 100,000. By 1910, it had become more than three times that number at 320,000, and by 1920 the figure reached 576,673.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> This unexpectedly rapid growth brought a demand for a larger water supply. Between 1920 and 1926, seven smaller reservoirs were built and modifications were made to raise the height of the water bureau's largest of the time, the Lower San Fernando reservoir, by seven feet, but the need for a still-larger reservoir was clear. </p><p>Originally, the planned site of this new large reservoir was to be in <a href="/wiki/Big_Tujunga_Creek" title="Big Tujunga Creek">Big Tujunga Canyon</a>, above the community now known as <a href="/wiki/Sunland-Tujunga,_Los_Angeles" title="Sunland-Tujunga, Los Angeles">Sunland</a>, in the northeast portion of the <a href="/wiki/San_Fernando_Valley" title="San Fernando Valley">San Fernando Valley</a>, but the high asking prices of the ranches and private land which had to be acquired were, in Mulholland's view, an attempted <a href="/wiki/Robbery" title="Robbery">hold-up</a> of the city. He ceased attempts at purchasing those lands and, either forgetful of or disregarding his earlier acknowledgement of geological problems at the site,<sup id="cite_ref-FOOTNOTEKahrl1983312_18-0" class="reference"><a href="#cite_note-FOOTNOTEKahrl1983312-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> renewed his interest in the area he had explored twelve years earlier, the federally owned and far less expensive private land in San Francisquito Canyon.<sup id="cite_ref-FOOTNOTERogers199521_13-1" class="reference"><a href="#cite_note-FOOTNOTERogers199521-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTEOutland2002123_19-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002123-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Construction_and_modification">Construction and modification</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=3" title="Edit section: Construction and modification"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:San_Francisquito_Reservoir_on_topo_v2.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/San_Francisquito_Reservoir_on_topo_v2.jpg/330px-San_Francisquito_Reservoir_on_topo_v2.jpg" decoding="async" width="330" height="253" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/San_Francisquito_Reservoir_on_topo_v2.jpg/495px-San_Francisquito_Reservoir_on_topo_v2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6f/San_Francisquito_Reservoir_on_topo_v2.jpg/660px-San_Francisquito_Reservoir_on_topo_v2.jpg 2x" data-file-width="3065" data-file-height="2348" /></a><figcaption>The approximate extent of the reservoir created by the dam</figcaption></figure> <p>The process of surveying the area and determining the location for the St. Francis Dam began in December 1922. Clearing of the site and construction began without any of the usual fanfare for a municipal project of this nature. The Los Angeles Aqueduct had become the target of frequent sabotage by angry farmers and landowners in the Owens Valley and the city was eager to avoid any repeat of these expensive and time-consuming repairs. </p><p>The St. Francis Dam, sometimes referred to as the San Francisquito Dam, was only the second concrete dam to be designed and built by the Bureau of Water Works and Supply. The first was the nearly dimensionally-identical <a href="/wiki/Mulholland_Dam" title="Mulholland Dam">Mulholland Dam</a>, on which construction had begun one year earlier. The design of the St. Francis Dam was in fact an adaptation of the Mulholland Dam, with modifications made so as to suit the site. Most of the design profiles and computation figures of stress factors for the St. Francis Dam came from this adaptation of the plans and formulas which had been used in the constructing of the Mulholland Dam. This work was done by the engineering department within the Bureau of Water Works and Supply.<sup id="cite_ref-FOOTNOTERogers199523–26_20-0" class="reference"><a href="#cite_note-FOOTNOTERogers199523–26-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTECoroner's_Inquest1928319–20_21-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928319–20-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p><p>In describing the shape and type of the St. Francis Dam, the word <i>curved</i> is used although, by today's standards, due to the amount of curve in its radius, the dam would be considered <a href="/wiki/Arched_dam" class="mw-redirect" title="Arched dam">arched</a>, therefore making it of the <a href="/wiki/Arch-gravity_dam" class="mw-redirect" title="Arch-gravity dam">arch-gravity</a> design. It was not so called because the science of arch-gravity dams was still in its infancy. Little was known in the engineering community about the arch effect, how it worked and how loads were transmitted, other than that it did help with stability and support. As such, the dam was designed without any of the additional benefits given by the <a href="/wiki/Arch_action" class="mw-redirect" title="Arch action">arch action</a>, which led to its profile being considered conservative, given its size.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTERogers199530_23-0" class="reference"><a href="#cite_note-FOOTNOTERogers199530-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p><p>Annually, as did most other city entities, the Bureau of Water Works and Supply and the ancillary departments reported to the Board of Public Service Commissioners on the prior <a href="/wiki/Fiscal_year" title="Fiscal year">fiscal year</a>'s activities. From these we know that the preliminary studies of the area which became the site of the St. Francis Dam, and topographical surveys for the dam, were completed by June 1923. They called for a dam built to the elevation of 1,825 ft (556 m) above sea level, which is 175 ft (53 m) above the stream bed base. These early calculations for a reservoir created by the dam revealed it would have a capacity of approximately 30,000 acre⋅ft (37,000,000 m<sup>3</sup>).<sup id="cite_ref-FOOTNOTEOutland200229_24-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200229-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p><p>On July 1, 1924, the same day Mulholland was to submit his annual report to the Board of Public Service Commissioners, Office Engineer W. W. Hurlbut informed him that all of the preliminary work on the dam had been completed. In his report presented to the Board, Mulholland wrote that the capacity of the reservoir would be <span class="nowrap">32,000 acre-feet</span> (<span class="nowrap">39,000,000 m<sup>3</sup></span>). Hurlbut, who also presented the Board with his annual report, <i>Report of the Office Engineer</i>, gave a clarification for this change from the prior year's estimate. In his report he wrote that: </p> <blockquote><p>...at the St. Francis Reservoir the dam site has been cleared and the foundation trench started. All concrete placing equipment has been contracted for and it is expected actual work of pouring the concrete will start in approximately ninety days. Additional topographic surveys have been completed and disclose a storage capacity of 32,000 acre feet at elevation 1825 feet above sea level.</p></blockquote> <p>Construction of the dam itself began five weeks later, in early August, when the first concrete was poured.<sup id="cite_ref-FOOTNOTEOutland200233_26-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200233-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>In March 1925, prior to Mulholland's report to the Board of Public Service Commissioners, Hurlbut again reported to Mulholland on the progress of the St. Francis project. He stated the reservoir would now have a capacity of <span class="nowrap">38,000 acre-feet</span> (<span class="nowrap">47,000,000 m<sup>3</sup></span>) and that the dam's height would be 185 feet (56 m) above stream bed level. Hurlbut wrote, in an explanation of these changes that was presented to the Board of Public Service Commissioners, that: </p> <blockquote><p>Additional surveys and changes in the plans for this reservoir have disclosed the fact that at crest elevation of 1835 feet above sea level the reservoir will have a capacity of 38,000 acre-feet.<sup id="cite_ref-FOOTNOTEOutland200230_28-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200230-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup></p></blockquote> <p>This 10-foot (3.0 m) increase in the dam's height over the original plan of 1923 necessitated the construction of a 588-foot (179 m) long <a href="/wiki/Wing_dam" title="Wing dam">wing dike</a> along the top of the ridge adjacent to the western abutment in order to contain the enlarged reservoir.<sup id="cite_ref-FOOTNOTEOutland2002201_30-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002201-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p><p>A distinctive aspect of the St. Francis Dam was its stepped downstream face. While the height of each step was a constant 5 feet (1.5 m), the width of each step was unique to its respective elevation above sea level. This width varied between 5.5 feet (1.7 m) near the stream bed base at 1,650 feet (500 m) and decreased to 1.45 feet (0.44 m) at an elevation of 1,816 feet (554 m), the base of the spillways and upright panels.<sup id="cite_ref-Reassessment_31-0" class="reference"><a href="#cite_note-Reassessment-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p><p>When completed on May 4, 1926, the stairstep-faced dam rose to a height of 185 feet above the canyon floor. Both faces leading up to the crest were vertical for the final 23 feet (7.0 m). On the downstream face, this vertical section was fashioned into 24 feet (7.3 m) wide sections. A portion of these made up the <a href="/wiki/Spillway" title="Spillway">spillway</a>, which consisted of eleven panels in total divided into two groups. Each spillway section had an open area that was 18 inches (46 cm) high and 20 feet (6.1 m) wide for the overflow to pass. The dam also had five 30-inch (76 cm) diameter outlet pipes through the center section which were controlled by slide gates attached to the upstream face. </p> <div class="mw-heading mw-heading2"><h2 id="Dam_instability">Dam instability</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=4" title="Edit section: Dam instability"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Water began to fill the reservoir on March 12, 1926.<sup id="cite_ref-Rise_32-0" class="reference"><a href="#cite_note-Rise-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> It rose steadily and rather uneventfully, although several temperature and contraction cracks did appear in the dam, and a minor amount of seepage began to flow from under the abutments. In accord with the protocol for design, which had been established by the Engineering department during construction of the Mulholland Dam, no contraction joints were incorporated.<sup id="cite_ref-FOOTNOTEOutland2002198_33-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002198-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> The most notable incidents were two vertical cracks that ran down through the dam from the top; one was approximately 58 feet (18 m) west of the outlet gates and another about the same distance to the east. Mulholland, along with his Assistant Chief Engineer and General Manager Harvey Van Norman, inspected the cracks and judged them to be within expectation for a concrete dam the size of the St. Francis. </p><p>At the beginning of April, the water level reached the area of the inactive San Francisquito Fault line in the western abutment. Some seepage began almost immediately as the water covered this area. Workers were ordered to seal off the leak, but they were not entirely successful, and water continued to permeate through the face of the dam. A two-inch pipe was used to collect this seepage and was laid from the fault line down to the home of the dam keeper, Tony Harnischfeger, which he used for domestic purposes. Water that collected in the drainage pipes under the dam to relieve the <a href="/wiki/Hydrostatics#Hydrostatic_pressure" title="Hydrostatics">hydrostatic uplift pressure</a> was carried off in this manner as well.<sup id="cite_ref-FOOTNOTEOutland200246_34-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200246-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p><p>In April 1927 the reservoir level was brought to within 10 feet (3.0 m) of the spillway, and during most of May the water level was within 3 feet (0.91 m) of overflowing. There were no large changes in the amount of the seepage that was collected and, month after month, the pipe flowed about one-third full. This was an insignificant amount for a dam the size of the St. Francis, and on this subject Mulholland said, "Of all the dams I have built and of all the dams I have ever seen, it was the driest dam of its size I ever saw." The seepage data recorded during the 1926–1927 period shows that the dam was an exceptionally dry structure.<sup id="cite_ref-FOOTNOTEOutland200246_34-1" class="reference"><a href="#cite_note-FOOTNOTEOutland200246-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p><p>On May 27, 1927, the problems in the Owens Valley escalated once again with the dynamiting of a large section of the Los Angeles Aqueduct, part of the <a href="/wiki/California_Water_Wars" class="mw-redirect" title="California Water Wars">California Water Wars</a>. A second incident took place a few days later, destroying another large section. In the days that followed, several more sections of the aqueduct were dynamited which caused a complete disruption of the flow. The near-full reservoir behind the St. Francis Dam was the only source of water from the north and withdrawals began immediately.<sup id="cite_ref-FOOTNOTEOutland200249_35-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200249-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p><p>During this time, the <a href="/wiki/Los_Angeles_County_Sheriff%27s_Department" title="Los Angeles County Sheriff's Department">Los Angeles County Sheriff's Department</a> received an anonymous phone call that a carload of men were on their way from <a href="/wiki/Inyo_County,_California" title="Inyo County, California">Inyo County</a> with the intention of dynamiting the dam and "to get some officers on the way as quick as possible."<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928547_36-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928547-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTEOutland200249_35-1" class="reference"><a href="#cite_note-FOOTNOTEOutland200249-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> Within minutes, all personnel of the Bureau of Power and Light and the Bureau of Water Works and Supply either working or residing within the canyon had been notified. Cars carrying dozens of officers from both the <a href="/wiki/Los_Angeles_Police_Department" title="Los Angeles Police Department">Los Angeles Police</a> and Sheriff's Departments rushed to the area. Although no sign of the threat that brought all this about materialized, for many days after, the canyon resembled an armed encampment.<sup id="cite_ref-FOOTNOTEOutland200249_35-2" class="reference"><a href="#cite_note-FOOTNOTEOutland200249-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p><p>The Daily Record of High Water Elevations of the St. Francis Dam shows that between May 27 and June 30 alone, 7000 to 8000 acre-feet of water was withdrawn. Through June and July the Owens Valley fight continued, as did interruptions in the flow from the aqueduct. This in turn caused continued withdrawals from the reservoir.<sup id="cite_ref-FOOTNOTEOutland200249_35-3" class="reference"><a href="#cite_note-FOOTNOTEOutland200249-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> In early August, opposition to Los Angeles's water projects collapsed after the <a href="/wiki/Indictment" title="Indictment">indictment</a> of its leaders for <a href="/wiki/Embezzlement" title="Embezzlement">embezzlement</a>. The city subsequently sponsored a series of repair and maintenance programs for aqueduct facilities that stimulated local employment.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p><p>The St. Francis reservoir level rose once again, although not without incident. Late in 1927, a fracture was noticed which began at the western abutment and ran diagonally upwards and toward the center section for a distance. As with others, Mulholland inspected the fracture, judged it to be another contraction crack and ordered it filled with <a href="/wiki/Oakum" title="Oakum">oakum</a> and grouted to seal off any seepage. At the same time, another fracture appeared in a corresponding position on the eastern portion of the dam, starting at the crest near the last spillway section and running downward at an angle for sixty-five feet before ending at the hillside. It too was sealed in the same manner. Both of these fractures were noted to be wider at their junction with the hillside abutments and narrowed as they angled toward the top of the dam.<sup id="cite_ref-FOOTNOTEOutland2002200_39-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002200-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </p><p>The reservoir continued to rise steadily until early February 1928, when the water level was brought to within one foot of the spillway. During this time though, several new cracks appeared in the wing dike, and new areas of seepage began from under both abutments.<sup id="cite_ref-FOOTNOTERogers199535_40-0" class="reference"><a href="#cite_note-FOOTNOTERogers199535-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> Near the end of February, a notable leak began at the base of the wing dike approximately 150 feet (46 m) west of the main dam, discharging about 0.60 cubic feet per second (4.5 U.S. gallons, or 17 liters, per second). The fracture was inspected by Mulholland, who judged it to be another contraction or temperature crack and left it open to drain. During the first week of March, it was noticed that the leak had approximately doubled. Due in part to some <a href="/wiki/Erosion" title="Erosion">erosion</a> taking place, Mulholland ordered an eight-inch (20.3 cm) concrete drain pipe to be installed. The pipe led the water along the dike wall, discharging it at the west abutment contact with the main dam.<sup id="cite_ref-FOOTNOTEOutland200253_41-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200253-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> This gave the hillside a very saturated appearance, and the water flowing down the steps of the dam where it abutted the hill caused alarm among the canyon residents and others traveling on the road 700 feet (210 m) to the east, as at that distance it appeared the water was coming from the abutment. </p><p>On March 7, 1928, the reservoir was three inches below the spillway crest and Mulholland ordered that no more water be turned into the St. Francis Dam.<sup id="cite_ref-FOOTNOTEOutland200251_42-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200251-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> Five days later, while conducting his morning rounds, Harnischfeger discovered a new leak in the west abutment. Concerned not only because other leaks had appeared in this same area in the past but more so that the muddy color of the runoff he observed could indicate the water was eroding the foundation of the dam, he immediately alerted Mulholland. After arriving, both Mulholland and Van Norman began inspecting the area of the leak. Van Norman found the source and by following the runoff, determined that the muddy appearance of the water was not from the leak itself but came from where the water contacted loose soil from a newly cut access road. The leak was discharging 2 to 3 cubic feet (15 to 22 US gal; 57 to 85 L) per second of water by their approximation. Mulholland and Van Norman's concern was heightened not only by the leak's location but by the inconsistent volume of the discharge, according to their testimony at the coroner's inquest. On two occasions as they watched, an acceleration or surging of the flow was noticed by both men.<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928384_43-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928384-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTEOutland200267_44-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200267-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> Mulholland felt that some corrective measures were needed, although this could be done at some time in the future.<sup id="cite_ref-FOOTNOTEOutland200269_45-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200269-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> </p><p>For the next two hours Mulholland, Van Norman and Harnischfeger inspected the dam and various leaks and seepages, finding nothing out of the ordinary or of concern for a large dam. With both Mulholland and Van Norman convinced that the new leak was not dangerous and that the dam was safe, they returned to Los Angeles.<sup id="cite_ref-FOOTNOTEOutland200269_45-1" class="reference"><a href="#cite_note-FOOTNOTEOutland200269-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTECoroner's_Inquest192890–94_46-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest192890–94-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Collapse_and_flood_wave">Collapse and flood wave</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=5" title="Edit section: Collapse and flood wave"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:316333_007-p.tif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/316333_007-p.tif/lossy-page1-330px-316333_007-p.tif.jpg" decoding="async" width="330" height="196" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/316333_007-p.tif/lossy-page1-495px-316333_007-p.tif.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f8/316333_007-p.tif/lossy-page1-660px-316333_007-p.tif.jpg 2x" data-file-width="8204" data-file-height="4870" /></a><figcaption>Another view of the St Francis Dam after collapse</figcaption></figure> <p>Two and a half minutes before midnight on March 12, 1928, the St. Francis Dam <a href="/wiki/Catastrophic_failure" title="Catastrophic failure">catastrophically failed</a>. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:St._Francis_Dam_after_the_1928_failure.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/St._Francis_Dam_after_the_1928_failure.jpg/300px-St._Francis_Dam_after_the_1928_failure.jpg" decoding="async" width="300" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/St._Francis_Dam_after_the_1928_failure.jpg/450px-St._Francis_Dam_after_the_1928_failure.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/St._Francis_Dam_after_the_1928_failure.jpg/600px-St._Francis_Dam_after_the_1928_failure.jpg 2x" data-file-width="1400" data-file-height="1043" /></a><figcaption>The same view of the "Tombstone" post-collapse. The west (left) abutment was entirely swept away. The inactive San Francisquito Fault is clearly visible, being located along the contact zone of schist and conglomerate.</figcaption></figure> <p>There were no surviving eyewitnesses to the collapse, but at least five people passed the dam less than an hour before without noticing anything unusual. The last,<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928641–45_47-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928641–45-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Victims_and_Heroes_48-0" class="reference"><a href="#cite_note-Victims_and_Heroes-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> Ace Hopewell, a carpenter at Powerhouse <span class="nowrap">No. 1</span>, rode his motorcycle past the dam about ten minutes before midnight. At the coroner's inquest, Hopewell testified he had passed Powerhouse <span class="nowrap">No. 2</span> without seeing anything there or at the dam that caused him concern. He stated at approximately one and one-half miles (2.4 km) upstream he heard, above his motorcycle's engine noise, a rumbling much like the sound of "rocks rolling on the hill." Hopewell stopped, got off his motorcycle and smoked a cigarette while checking the hillsides. The rumbling had begun to fade, and Hopewell assumed the sound was a <a href="/wiki/Landslide" title="Landslide">landslide</a> common to the area. Hopewell finished his cigarette, got back on his motorcycle and left. He was the last person to see the St. Francis Dam intact and survive. </p><p>At both of the Bureau of Power and Light's receiving stations in Los Angeles and at the Bureau of Water Works and Supply at Powerhouse <span class="nowrap">No. 1</span>, there was a sharp voltage drop at <span class="nowrap">11:57:30 p.m.</span><sup id="cite_ref-FOOTNOTECoroner's_Inquest1928468_49-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928468-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> Simultaneously, a <a href="/wiki/Transformer" title="Transformer">transformer</a> at <a href="/wiki/Southern_California_Edison" title="Southern California Edison">Southern California Edison</a>'s (SCE) <a href="/wiki/Saugus,_Santa_Clarita,_California" title="Saugus, Santa Clarita, California">Saugus</a> <a href="/wiki/Electrical_substation" class="mw-redirect" title="Electrical substation">substation</a> exploded, a situation investigators later determined was caused by wires up the western hillside of San Francisquito Canyon about ninety feet above the dam's east abutment <a href="/wiki/Short_circuit" title="Short circuit">shorting</a>.<sup id="cite_ref-FOOTNOTEOutland2002108_50-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002108-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Reassessment_31-1" class="reference"><a href="#cite_note-Reassessment-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p><p><br /> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Pp2before.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Pp2before.jpg/220px-Pp2before.jpg" decoding="async" width="220" height="322" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Pp2before.jpg/330px-Pp2before.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Pp2before.jpg/440px-Pp2before.jpg 2x" data-file-width="3803" data-file-height="5568" /></a><figcaption>Power Plant 2 before dam collapse</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Pp2after.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Pp2after.jpg/220px-Pp2after.jpg" decoding="async" width="220" height="336" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/17/Pp2after.jpg/330px-Pp2after.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/17/Pp2after.jpg/440px-Pp2after.jpg 2x" data-file-width="3681" data-file-height="5614" /></a><figcaption>Power Plant 2 after dam collapse</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg/220px-Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg" decoding="async" width="220" height="286" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg/330px-Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg/440px-Man_pointing_at_crack_in_Saint_Francis_Dam_after_its_collapse.jpg 2x" data-file-width="4431" data-file-height="5760" /></a><figcaption>Man pointing at crack in Saint Francis Dam after its collapse</figcaption></figure> <p>Given the known height of the flood wave, and the fact that within seventy minutes or less after the collapse the reservoir was virtually empty, the failure must have been sudden and complete. Seconds after it began, little of the dam remained standing, other than the center section and wing wall. The main dam, from west of the center section to the wing wall abutment atop the hillside, broke into several large pieces and numerous smaller pieces. All of these were washed downstream as 12.4 billion gallons (47 million m³) of water began surging down San Francisquito Canyon. The largest piece, weighing approximately 10,000 tons (9,000 metric tons) was found about three-quarters of a mile (1.2 km) below the dam site.<sup id="cite_ref-FOOTNOTEOutland2002222–23_51-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002222–23-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> </p><p>Somewhat similarly, the dam portion east of the center section had also broken into several larger and smaller pieces. Unlike the western side, most of these came to rest near the base of the standing section. The largest fragments fell across the lower portion of the standing section, coming to rest partially on its upstream face. Initially, the two remaining sections of the dam remained upright. As the reservoir lowered, water undercut the already undermined eastern portion, which twisted and fell backwards toward the eastern hillside, breaking into three sections.<sup id="cite_ref-FOOTNOTEOutland2002222–23_51-1" class="reference"><a href="#cite_note-FOOTNOTEOutland2002222–23-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> </p><p>Harnischfeger and his family were most likely among the first casualties caught in the initial 140 feet (43 m) high flood wave, which swept over their cottage about one-quarter mile (400 m) downstream from the dam. The body of a woman who lived with the family was found fully clothed and wedged between two blocks of concrete near the base of the dam. This led to the suggestion she and Harnischfeger may have been inspecting the structure immediately before its failure. Neither Harnischfeger's body nor that of his six-year-old son were found.<sup id="cite_ref-FOOTNOTEOutland200273–74_52-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200273–74-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> </p><p>Five minutes after the collapse, the then 120-foot-high (37 m) flood wave had traveled one and one-half miles (<span class="nowrap">2.4 km</span>) at an average speed of 18 miles per hour (29 km/h), destroying Powerhouse <span class="nowrap">No. 2</span> and taking the lives of 64 of the 67 workmen and their families who lived nearby. This cut power to much of Los Angeles and the San Fernando Valley. Power was quickly restored via tie-lines with SCE, but as the floodwater entered the <a href="/wiki/Santa_Clara_River_(California)" title="Santa Clara River (California)">Santa Clara riverbed</a> it overflowed the river's banks, flooding parts of present-day <a href="/wiki/Valencia,_California" title="Valencia, California">Valencia</a> and <a href="/wiki/Newhall,_Santa_Clarita,_California" title="Newhall, Santa Clarita, California">Newhall</a>. At about 12:40 a.m. SCE's two main lines into the city were destroyed by the flooding, re-darkening the areas that had earlier lost power and spreading the outage to other areas served by SCE. Nonetheless, power to most of the areas not flooded was restored with power from SCE's <a href="/wiki/Long_Beach,_California" title="Long Beach, California">Long Beach</a> <a href="/wiki/Steam%E2%80%93electric_power_station" title="Steam–electric power station">steam–electric generating plant</a>.<sup id="cite_ref-FOOTNOTEOutland200296_53-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200296-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> </p><p>Near <span class="nowrap">1:00 a.m.</span> the mass of water, then 55 ft (17 m) high,<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> followed the river bed west and demolished SCE's Saugus substation, cutting power to the entire <a href="/wiki/Santa_Clara_River_Valley" title="Santa Clara River Valley">Santa Clara River Valley</a> and parts of <a href="/wiki/Ventura,_California" title="Ventura, California">Ventura</a> and <a href="/wiki/Oxnard,_California" title="Oxnard, California">Oxnard</a>. At least four miles of the state's main north–south highway was under water and the town of <a href="/wiki/Castaic_Junction,_California" title="Castaic Junction, California">Castaic Junction</a> was being washed away.<sup id="cite_ref-FOOTNOTEOutland200295–96_55-0" class="reference"><a href="#cite_note-FOOTNOTEOutland200295–96-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> </p><p>The flood entered the Santa Clarita River Valley at 12 mph (19 km/h). Approximately five miles downstream, near the <a href="/wiki/Ventura_County" class="mw-redirect" title="Ventura County">Ventura</a>–<a href="/wiki/Los_Angeles_County" class="mw-redirect" title="Los Angeles County">Los Angeles</a> county line, a temporary construction camp SCE had set up for its 150-man crew on the flats of the riverbank was hit. In the confusion, SCE personnel had been unable to issue a warning and 84 workers perished.<sup id="cite_ref-FOOTNOTEOutland2002127_56-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002127-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> Shortly before <span class="nowrap">1:30 a.m.</span>, a Santa Clara River Valley telephone operator learned from the <a href="/wiki/Pacific_Bell" title="Pacific Bell">Pacific Long Distance Telephone Company</a> that the St. Francis Dam had failed. She called a motorcycle officer with the State Motor Division,<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> then began calling the homes of those in danger. The officer went door-to-door warning residents about the imminent flood.<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> At the same time, a deputy sheriff drove up the valley, toward the flood, with his siren blaring, until he had to stop at <a href="/wiki/Fillmore,_California" title="Fillmore, California">Fillmore</a>.<sup id="cite_ref-Victims_and_Heroes_48-1" class="reference"><a href="#cite_note-Victims_and_Heroes-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </p><p>The flood heavily damaged the towns of Fillmore, <a href="/wiki/Bardsdale,_California" title="Bardsdale, California">Bardsdale</a> and <a href="/wiki/Santa_Paula" class="mw-redirect" title="Santa Paula">Santa Paula</a> before emptying both victims and debris into the <a href="/wiki/Pacific_Ocean" title="Pacific Ocean">Pacific Ocean</a> 54 miles (87 km) downstream south of Ventura, at what is now the <a href="/wiki/West_Montalvo_Oil_Field" title="West Montalvo Oil Field">West Montalvo Oil Field</a>, around <span class="nowrap">5:30 a.m.</span>, at which point the wave was almost two miles (<span class="nowrap">3 km</span>) wide and still traveling at 6 mph (9.7 km/h). </p><p>Newspapers across the country carried accounts of the disaster. The front page of the <i><a href="/wiki/Los_Angeles_Times" title="Los Angeles Times">Los Angeles Times</a></i> ran four stories, including aerial photos of the collapsed dam and the ruins of Santa Paula. In a statement, Mulholland said, "I would not venture at this time to express a positive opinion as to the cause of the St. Francis Dam disaster... Mr. Van Norman and I arrived at the scene of the break around 2:30<span class="nowrap"> </span>a.m. this morning. We saw at once that the dam was completely out and that the torrential flood of water from the reservoir had left an appalling record of death and destruction in the valley below."<sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> Mulholland stated that it appeared that there had been major movement in the hills forming the western buttress of the dam, adding that three eminent geologists, <a href="/wiki/Robert_T._Hill" title="Robert T. Hill">Robert T. Hill</a>, C. F. Tolman and D.W. Murphy, had been hired by the Board of Water and Power Commissioners to determine if this was the cause. </p> <div class="mw-heading mw-heading2"><h2 id="Investigation">Investigation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=6" title="Edit section: Investigation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There were at least a dozen investigations into the disaster. With unprecedented speed, eight of these had begun by the weekend following the collapse. Almost all involved investigative panels of prominent engineers and geologists. The more notable of these groups and committees were those sponsored by <a href="/wiki/Governor_of_California" title="Governor of California">Governor</a> <a href="/wiki/C._C._Young" title="C. C. Young">C. C. Young</a>, headed by A. J. Wiley, the renowned dam engineer and consultant to the <a href="/wiki/United_States_Bureau_of_Reclamation" title="United States Bureau of Reclamation">U.S. Bureau of Reclamation</a>'s <a href="/wiki/Hoover_Dam" title="Hoover Dam">Boulder (Hoover) Dam</a> Board; the Los Angeles City Council, which was chaired by the Chief of the Reclamation Service, Elwood Mead; Los Angeles County <a href="/wiki/Coroner" title="Coroner">Coroner</a> Frank Nance, and <a href="/wiki/Los_Angeles_County_District_Attorney" title="Los Angeles County District Attorney">Los Angeles County District Attorney</a> <a href="/wiki/Asa_Keyes" title="Asa Keyes">Asa Keyes</a>. Others were convened: the Water and Power Commissioners started their own inquiry, as did the <a href="/wiki/Los_Angeles_County_Board_of_Supervisors" title="Los Angeles County Board of Supervisors">Los Angeles County Board of Supervisors</a>, who hired J. B. Lippincott. The Santa Clara River Protective Association employed the geologist and <a href="/wiki/Stanford_University" title="Stanford University">Stanford University</a> professor emeritus, Dr. <a href="/wiki/Bailey_Willis" title="Bailey Willis">Bailey Willis</a>, and eminent <a href="/wiki/San_Francisco" title="San Francisco">San Francisco</a> civil engineer and past president of the <a href="/wiki/American_Society_of_Civil_Engineers" title="American Society of Civil Engineers">American Society of Civil Engineers</a>, <a href="/wiki/Carl_E._Grunsky" title="Carl E. Grunsky">Carl E. Grunsky</a>. There were still others, such as the state railroad commission and several political entities who only sent investigators or representatives.<sup id="cite_ref-FOOTNOTEOutland2002193–94_61-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002193–94-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup> </p><p>Although they were not unanimous on all points, most commissions quickly reached their conclusions. The governor's commission met on March 19 and submitted their 79-page report to the governor on March 24, only eleven days after the collapse. Although this may have been sufficient time to answer what they had been directed to determine, they had been deprived of the sworn testimony at the coroner's inquest, which was scheduled to be convened March 21, the only inquiry that took into consideration factors other than geology and engineering.<sup id="cite_ref-FOOTNOTEOutland2002203_62-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002203-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> </p><p>The need for immediate answers was understandable, having its roots in the <a href="/wiki/Phil_Swing" title="Phil Swing">Swing</a>–<a href="/wiki/Hiram_Johnson" title="Hiram Johnson">Johnson</a> Bill in <a href="/wiki/United_States_Congress" title="United States Congress">Congress</a>. This bill, which had first been filed in 1922, and failed to be voted on in three successive Congresses, was again before Congress at the time. This bill ultimately provided the funding for constructing the Hoover Dam. Supporters and responsible leaders alike realized the jeopardy in which the bill stood. Although the water and electricity from the project were needed, the idea of the construction of such a massive dam of similar design, which would create a reservoir seven hundred times larger than the St. Francis, did not sit well with many in light of the recent disaster and the devastation.<sup id="cite_ref-FOOTNOTEOutland2002193_63-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002193-63"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup> The bill was passed by Congress and signed into law by <a href="/wiki/President_of_the_United_States" title="President of the United States">U.S. President</a> <a href="/wiki/Calvin_Coolidge" title="Calvin Coolidge">Calvin Coolidge</a> on December 21, 1928.<sup id="cite_ref-Swing-Johnson_USBR_History_64-0" class="reference"><a href="#cite_note-Swing-Johnson_USBR_History-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup> </p><p>The governor's commission was the first to release its findings, titled <i>Report of the Commission appointed by Governor C. C. Young to investigate the causes leading to the failure of the St. Francis dam near Saugus, California</i>. The report became the most widely distributed analysis. Along with most of the other investigators, they perceived the new leak as the key to understanding the collapse, although the commission believed that "the foundation under the entire dam left very much to be desired." The report stated, "With such a formation, the ultimate failure of this dam was inevitable, unless water could have been kept from reaching the foundation. Inspection galleries, pressure grouting, drainage wells and deep cut-off walls are commonly used to prevent or remove percolation, but it is improbable that any or all of these devices would have been adequately effective, though they would have ameliorated the conditions and postponed the final failure."<sup id="cite_ref-FOOTNOTEWiley1928123_66-0" class="reference"><a href="#cite_note-FOOTNOTEWiley1928123-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> They placed the cause of the failure on the western hillside. "The west end," the commission stated, "was founded upon a reddish conglomerate which, even when dry, was of decidedly inferior strength and which, when wet, became so soft that most of it lost almost all rock characteristics." The softening of the "reddish conglomerate" undermined the west side. "The rush of water released by failure of the west end caused a heavy <a href="/wiki/Hydrodynamic_scour" title="Hydrodynamic scour">scour</a> against the easterly canyon wall ... and caused the failure of that part of the structure." There then "quickly followed ... the collapse of large sections of the dam."<sup id="cite_ref-Privilege_and_Responsibility_67-0" class="reference"><a href="#cite_note-Privilege_and_Responsibility-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> </p><p>The committee appointed by the Los Angeles City Council for the most part concurred in attributing the collapse to "defective foundations", and wrote, "The manner of failure was that the first leak, however started, began under the concrete at that part of the dam which stood on the red conglomerate; this leak increased in volume as it scoured away the foundation material already greatly softened by infiltrated water from the reservoir which removed the support of the dam at this point and since no arch action could occur by reason of the yielding conglomerate abutment, made failure of the dam inevitable." Likewise, they concluded the failure most likely followed a pattern similar to that which was proposed by the governor's commission, although they did acknowledge that "the sequence of failure is uncertain."<sup id="cite_ref-LA_City_Council_Report_68-0" class="reference"><a href="#cite_note-LA_City_Council_Report-68"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup> </p><p>The committee ended their report with, "...having examined all the evidence which it has been able to obtain to date reports its conclusions as follows: </p> <ol><li>The type and dimensions of the dam were amply sufficient if based on suitable foundation.</li> <li>The concrete of which the dam was built was of ample strength to resist the stresses to which it would normally be subjected.</li> <li>The failure cannot be laid to movement of the earth's crust.</li> <li>The dam failed as a result of defective foundations.</li> <li>This failure reflects in no way the stability of a well designed gravity dam properly founded on suitable bedrock."<sup id="cite_ref-LA_City_Council_Report_68-1" class="reference"><a href="#cite_note-LA_City_Council_Report-68"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup></li></ol> <style data-mw-deduplicate="TemplateStyles:r1273380762/mw-parser-output/.tmulti">.mw-parser-output .tmulti .multiimageinner{display:flex;flex-direction:column}.mw-parser-output .tmulti .trow{display:flex;flex-direction:row;clear:left;flex-wrap:wrap;width:100%;box-sizing:border-box}.mw-parser-output .tmulti .tsingle{margin:1px;float:left}.mw-parser-output .tmulti .theader{clear:both;font-weight:bold;text-align:center;align-self:center;background-color:transparent;width:100%}.mw-parser-output .tmulti .thumbcaption{background-color:transparent}.mw-parser-output .tmulti .text-align-left{text-align:left}.mw-parser-output .tmulti .text-align-right{text-align:right}.mw-parser-output .tmulti .text-align-center{text-align:center}@media all and (max-width:720px){.mw-parser-output .tmulti .thumbinner{width:100%!important;box-sizing:border-box;max-width:none!important;align-items:center}.mw-parser-output .tmulti .trow{justify-content:center}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:100%!important;box-sizing:border-box;text-align:center}.mw-parser-output .tmulti .tsingle .thumbcaption{text-align:left}.mw-parser-output .tmulti .trow>.thumbcaption{text-align:center}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .tmulti .multiimageinner span:not(.skin-invert-image):not(.skin-invert):not(.bg-transparent) img{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .tmulti .multiimageinner span:not(.skin-invert-image):not(.skin-invert):not(.bg-transparent) img{background-color:white}}</style><div class="thumb tmulti tright"><div class="thumbinner multiimageinner" style="width:463px;max-width:463px"><div class="trow"><div class="tsingle" style="width:277px;max-width:277px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/File:St._Francis_abutment.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/St._Francis_abutment.jpg/275px-St._Francis_abutment.jpg" decoding="async" width="275" height="158" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/St._Francis_abutment.jpg/413px-St._Francis_abutment.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/22/St._Francis_abutment.jpg/550px-St._Francis_abutment.jpg 2x" data-file-width="1400" data-file-height="806" /></a></span></div><div class="thumbcaption">Concrete block from the west abutment of the dam about half a mile below the dam site. Approximately 63 ft. long, 30 ft. high and 54 ft. wide (19.2 m × 9.1 m × 16.5 m). The wing wall is in the distance.</div></div><div class="tsingle" style="width:182px;max-width:182px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/File:Standing_section.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Standing_section.jpg/180px-Standing_section.jpg" decoding="async" width="180" height="135" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Standing_section.jpg/270px-Standing_section.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Standing_section.jpg/360px-Standing_section.jpg 2x" data-file-width="1250" data-file-height="936" /></a></span></div><div class="thumbcaption">Standing section (the "Tombstone") with fragments from east side of dam.<sup id="cite_ref-:0_69-0" class="reference"><a href="#cite_note-:0-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup></div></div></div></div></div> <p>The consensus of most of the investigating commissions was that the initial break had taken place at or near the fault line on the western abutment, which had been a problem area since water first covered the area. The prevailing thought was that increasing water percolation through the fault line had either undermined or weakened the foundation to a point that a portion of the structure blew out or the dam collapsed from its own immense weight. This was supported by a chart made by the automatic water level recorder located on the dam's center section. This chart clearly showed that there had been no significant change in the reservoir level until forty minutes before the dam's failure, at which time a small though gradually increasing loss was recorded.<sup id="cite_ref-FOOTNOTEOutland2002204_70-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002204-70"><span class="cite-bracket">[</span>70<span class="cite-bracket">]</span></a></sup> </p><p>The only theory to vary greatly from the others was that of Willis, Grunsky and his son. They believed that the portion of the east abutment below the dam was the first to give way, clearing the way for the collapse to take place. Their investigations, while somewhat collaborative, culminated in two separate reports (one by the Grunskys and the other by Willis) which were completed in April 1928. These reports, according to Grunsky, "were reached independently" and "are in substantial agreement."<sup id="cite_ref-Grunsky_71-0" class="reference"><a href="#cite_note-Grunsky-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup> </p><p>Willis and the Grunskys agreed with the other engineers and investigators about the poor quality and deteriorating conditions of the entire foundation, although they maintained that a critical situation developed on the east abutment. Willis, the geologist of the investigative team, was most likely the first to discover the "old landslide" within the mountains which had made the eastern abutment for the dam. In his report, he discussed it at great length and the Grunskys drew substantially on it, as they did his analysis of the schist, for their own report. The Grunskys, as civil engineers, took the lead in that area of the investigation, and in describing the role played by "hydrostatic uplift".<sup id="cite_ref-Grunsky_71-1" class="reference"><a href="#cite_note-Grunsky-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup> </p><p>Uplift takes its name from its tendency to lift a dam upward. Although many designers and builders of dams had become aware of this phenomenon by the late 1890s to early 1900s, it was still not generally well understood or appreciated. Nevertheless, it was becoming a matter of debate and a concern to dam builders of this era that water from a reservoir could seep under a dam and exert pressure upward. Due for the most part to inadequate drainage of the base and side abutments, the phenomenon of uplift destabilizes gravity dams by reducing the structure's "effective weight", making it less able to resist horizontal water pressure. Uplift can act through the bedrock foundation: the condition most commonly develops where the bedrock foundation is strong enough to bear the weight of the dam, but is fractured or fissured and therefore susceptible to seepage and water saturation.<sup id="cite_ref-William_Mulholland_7-1" class="reference"><a href="#cite_note-William_Mulholland-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Privilege_and_Responsibility_67-1" class="reference"><a href="#cite_note-Privilege_and_Responsibility-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> </p><p>According to their theories, water from the reservoir had permeated far back into the schist formation of the eastern abutment. This lubricated the rock and it slowly began to move, exerting a tremendous amount of weight against the dam, which according to the Grunskys was already becoming less stable due to "uplift". Making the situation worse, Willis established, was that the conglomerate, on which the western abutment of the dam rested, reacted upon becoming wet by swelling. In fact, the amount of swelling was such that it would raise any structure built upon it.<sup id="cite_ref-FOOTNOTEOutland2002208_72-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002208-72"><span class="cite-bracket">[</span>72<span class="cite-bracket">]</span></a></sup> This <a href="/wiki/Hypothesis" title="Hypothesis">hypothesis</a> was reinforced when surveys taken of the wing wall after the failure were compared with those taken at the time it was built. They reveal that in some areas the wall was two to six inches higher than when built.<sup id="cite_ref-FOOTNOTERogers199543_73-0" class="reference"><a href="#cite_note-FOOTNOTERogers199543-73"><span class="cite-bracket">[</span>73<span class="cite-bracket">]</span></a></sup> Therefore, the dam was caught between forces that were acting on it much like a <a href="/wiki/Vise" title="Vise">vise</a>, as the red conglomerate swelled on one side, and the moving mountain pressed in on it from the other. </p><p>In his report, Grunsky concluded: </p> <blockquote><p>As soon as the dam was loosened on its base the toe of the structure spalled off. This was probably the beginning of its breaking up, and probably occurred sometime after 11:30 PM during the 23 minutes in which the water in the reservoir apparently fell 3/10 of a foot. Thereupon, quite likely, a part of the east end of the dam, meanwhile undermined, went out and the dam at this end lost its hillside support. Hydrostatic uplift at the already loose west and the weight of the remaining portion of the undermined east end caused a temporary tilting of the dam towards the east, accompanied by a rapid washing away of the hillside under the dam at its west end which then also began to break up. The reservoir water was now rushing with tremendous force against both ends and against the upstream face of all that was standing of the dam. This rush of water carried away huge blocks of concrete from both ends of the dam...<sup id="cite_ref-Grunsky_71-2" class="reference"><a href="#cite_note-Grunsky-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_69-1" class="reference"><a href="#cite_note-:0-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup></p></blockquote> <p>There was and remains a difference of professional opinions on the amount of time that elapsed, shown by the chart made by the Stevens automatic water level recorder, from when the line indicating the reservoir level broke sharply downward until it became perpendicular. Most investigating engineers feel the amount of time indicated on the chart is thirty to forty minutes, not the twenty-three minutes that Grunsky stated.<sup id="cite_ref-FOOTNOTEOutland2002209_74-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002209-74"><span class="cite-bracket">[</span>74<span class="cite-bracket">]</span></a></sup> </p><p>In support of his theory of the dam tilting, Grunsky pointed to an odd clue near the western lower edge of the standing section. Here a ladder had become wedged in a crack that had opened apparently during this rocking or tilting process and then had become tightly pinched in place as the section settled back on its foundation. Measurements taken proved the crack must have been much wider at the time that the ladder entered it. Further, surveys indeed showed the center section had been subjected to severe tilting or twisting. These surveys established that the center section had moved 5.5 inches (14 cm) downstream and 6 inches (15 cm) toward the eastern abutment.<sup id="cite_ref-Grunsky_71-3" class="reference"><a href="#cite_note-Grunsky-71"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup> </p><p>Although this investigation was insightful and informative, the theory, along with others which hypothesized an appreciably increasing amount of seepage just prior to the failure, becomes less likely when it is compared against the eyewitness accounts of the conditions in the canyon and near the dam during the last thirty minutes before its collapse.<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928642–44_75-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928642–44-75"><span class="cite-bracket">[</span>75<span class="cite-bracket">]</span></a></sup> Grunsky hypothesized, though failed to explain, the action of the dam tilting as he described. This action would have the dam in motion as a single unit while conversely, testimony given at the coroner's inquest indicates that the dam was fractured transversely in at least four places. Furthermore, the two cracks, which bordered each side of the standing center section, would have served as hinges to prevent this.<sup id="cite_ref-FOOTNOTEOutland2002209–12_76-0" class="reference"><a href="#cite_note-FOOTNOTEOutland2002209–12-76"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Aftermath">Aftermath</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=7" title="Edit section: Aftermath"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:St_Francis_Dam_area_terrain_relief_1.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/St_Francis_Dam_area_terrain_relief_1.svg/300px-St_Francis_Dam_area_terrain_relief_1.svg.png" decoding="async" width="300" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/St_Francis_Dam_area_terrain_relief_1.svg/450px-St_Francis_Dam_area_terrain_relief_1.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/03/St_Francis_Dam_area_terrain_relief_1.svg/600px-St_Francis_Dam_area_terrain_relief_1.svg.png 2x" data-file-width="970" data-file-height="492" /></a><figcaption>Map showing the location of the former St. Francis Dam and reservoir north of Santa Clarita between two later, still extant reservoirs – <a href="/wiki/Castaic_Dam" title="Castaic Dam">Castaic</a> and <a href="/wiki/Bouquet_Reservoir" title="Bouquet Reservoir">Bouquet</a>.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Aftermath_Canyon.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Aftermath_Canyon.jpg/300px-Aftermath_Canyon.jpg" decoding="async" width="300" height="235" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Aftermath_Canyon.jpg/450px-Aftermath_Canyon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Aftermath_Canyon.jpg/600px-Aftermath_Canyon.jpg 2x" data-file-width="5678" data-file-height="4452" /></a><figcaption>Looking downstream in San Francisquito canyon after dam collapse</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Twisted_Tracks.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Twisted_Tracks.jpg/300px-Twisted_Tracks.jpg" decoding="async" width="300" height="218" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Twisted_Tracks.jpg/450px-Twisted_Tracks.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Twisted_Tracks.jpg/600px-Twisted_Tracks.jpg 2x" data-file-width="1400" data-file-height="1017" /></a><figcaption>Gnarled railroad tracks of the <a href="/wiki/Santa_Paula_Branch_Line" title="Santa Paula Branch Line">Santa Paula Branch Line</a> near <a href="/wiki/Piru,_California" title="Piru, California">Piru</a> </figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Saint_Francis_Dam_Site_2012.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Saint_Francis_Dam_Site_2012.jpg/300px-Saint_Francis_Dam_Site_2012.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Saint_Francis_Dam_Site_2012.jpg/450px-Saint_Francis_Dam_Site_2012.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Saint_Francis_Dam_Site_2012.jpg/600px-Saint_Francis_Dam_Site_2012.jpg 2x" data-file-width="3648" data-file-height="2736" /></a><figcaption>Concrete ruins of the St. Francis Dam remain strewn about San Francisquito Canyon in 2012</figcaption></figure> <p>The center section of the St. Francis Dam, which had become known as "The Tombstone" due to a newspaper reporter's description of it as such, became an attraction for tourists and souvenir hunters.<sup id="cite_ref-:0_69-2" class="reference"><a href="#cite_note-:0-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup> It was toppled with dynamite in May 1929, and the remaining blocks were demolished with bulldozers and jackhammers to discourage exploration of the ruins by the public. The wing dike was used by Los Angeles firemen to gain experience in using explosives on building structures. The dam was not rebuilt, though <a href="/wiki/Bouquet_Reservoir" title="Bouquet Reservoir">Bouquet Reservoir</a> in nearby <a href="/wiki/Bouquet_Canyon" class="mw-redirect" title="Bouquet Canyon">Bouquet Canyon</a> was built in 1934 as an early replacement, with additional capacity added with the completion of the <a href="/wiki/Castaic_Dam" title="Castaic Dam">Castaic Dam</a> decades later in 1973.<sup id="cite_ref-Reassessment_31-2" class="reference"><a href="#cite_note-Reassessment-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p><p>The exact number of victims remains unknown. The official death toll in August 1928 was 385, but the remains of victims continued to be discovered every few years until the mid-1950s.<sup id="cite_ref-77" class="reference"><a href="#cite_note-77"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup> Many victims were swept out to sea when the flood reached the Pacific Ocean and were never recovered, while others were washed ashore, some as far south as the Mexican border. The remains of one victim were found deep underground near Newhall in 1992, and other bodies, believed to be victims of the disaster, were found in the late 1970s and 1994. The death toll is currently estimated to be at least 431.<sup id="cite_ref-78" class="reference"><a href="#cite_note-78"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup> </p><p>At the coroner's inquest, the leak that Harnischfeger had spotted was cited as evidence that the dam was leaking on the day of the break, and that both Mulholland and the Bureau of Water Works and Supply were aware of it. Mulholland told the jury he had been at the dam the day of the break due to the dam keeper's call, but neither he nor Van Norman had observed anything of concern, nor found any dangerous conditions. Mulholland further testified that leaks in dams, especially of the type and size of the St. Francis, were common. During the inquest Mulholland said, "This inquest is a very painful thing for me to have to attend but it is the occasion of it that is painful. The only ones I envy about this thing are the ones who are dead."<sup id="cite_ref-FOOTNOTECoroner's_Inquest192816_79-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest192816-79"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> In subsequent testimony, after answering a question he added, "Whether it is good or bad, don't blame anyone else, you just fasten it on me. If there was an error in human judgment, I was the human, I won't try to fasten it on anyone else."<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928378_80-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928378-80"><span class="cite-bracket">[</span>80<span class="cite-bracket">]</span></a></sup> </p><p>The coroner's inquest jury determined that one of the causative factors for the disaster lay in what they had termed as "an error in engineering judgment in determining the foundation at the St. Francis Dam site and deciding on the best type of dam to build there" and that "the responsibility for the error in engineering judgment rests upon the Bureau of Water Works and Supply, and the Chief Engineer thereof." They cleared Mulholland as well as others of the Bureau of Water Works and Supply of any criminal culpability, since neither he nor anyone else at the time could have known of the instability of the rock formations on which the dam was built. The hearings also recommended that "the construction and operation of a great dam should never be left to the sole judgment of one man, no matter how eminent."<sup id="cite_ref-FOOTNOTECoroner's_Inquest1928_81-0" class="reference"><a href="#cite_note-FOOTNOTECoroner's_Inquest1928-81"><span class="cite-bracket">[</span>81<span class="cite-bracket">]</span></a></sup> </p><p>Mulholland retired from the Bureau of Water Works and Supply on December 1, 1928.<sup id="cite_ref-82" class="reference"><a href="#cite_note-82"><span class="cite-bracket">[</span>82<span class="cite-bracket">]</span></a></sup> His assistant, Harvey Van Norman, succeeded him as chief engineer and general manager. Mulholland was retained as Chief Consulting Engineer, with an office, and received a salary of $500 a month. In later years, he retreated into a life of semi-isolation. Mulholland died in 1935, at the age of 79.<sup id="cite_ref-William_Mulholland_7-2" class="reference"><a href="#cite_note-William_Mulholland-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Dam_safety_legislation">Dam safety legislation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=8" title="Edit section: Dam safety legislation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In response to the St. Francis Dam disaster, the <a href="/wiki/California_legislature" class="mw-redirect" title="California legislature">California legislature</a> created an updated dam safety program and eliminated the municipal exemption. Before this was added, a municipality having its own engineering department was completely exempt from regulation.<sup id="cite_ref-83" class="reference"><a href="#cite_note-83"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup> </p><p>On August 14, 1929, the Department of Public Works, under the administrative oversight of the State Engineer, which was later assumed by the Division of Safety of Dams, was given authority to review all non-federal dams over twenty-five feet high or which could hold more than fifty acre-feet of water. The new legislation also allowed the state to employ consultants, as they deemed necessary.<sup id="cite_ref-84" class="reference"><a href="#cite_note-84"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> Additionally, the state was given full authority to supervise the maintenance and operation of all non-federal dams.<sup id="cite_ref-85" class="reference"><a href="#cite_note-85"><span class="cite-bracket">[</span>85<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Licensing_of_civil_engineers">Licensing of civil engineers</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=9" title="Edit section: Licensing of civil engineers"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Having determined that the unregulated design of construction projects constituted a hazard to the public, the California legislature passed laws to regulate civil engineering and, in 1929, created the state Board of Registration for Civil Engineers (now the Board for Professional Engineers, Land Surveyors, and Geologists).<sup id="cite_ref-86" class="reference"><a href="#cite_note-86"><span class="cite-bracket">[</span>86<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Analysis">Analysis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=10" title="Edit section: Analysis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1273380762/mw-parser-output/.tmulti" /><div class="thumb tmulti tleft"><div class="thumbinner multiimageinner" style="width:558px;max-width:558px"><div class="trow"><div class="tsingle" style="width:277px;max-width:277px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/File:316177006-p.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/316177006-p.jpg/275px-316177006-p.jpg" decoding="async" width="275" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/316177006-p.jpg/413px-316177006-p.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/316177006-p.jpg/550px-316177006-p.jpg 2x" data-file-width="7179" data-file-height="3831" /></a></span></div><div class="thumbcaption">A cross section view of the St Francis Dam after collapse</div></div><div class="tsingle" style="width:277px;max-width:277px"><div class="thumbimage"><span typeof="mw:File"><a href="/wiki/File:St._Francis_Dam_site_dike_and_landslide.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/St._Francis_Dam_site_dike_and_landslide.jpg/275px-St._Francis_Dam_site_dike_and_landslide.jpg" decoding="async" width="275" height="138" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/St._Francis_Dam_site_dike_and_landslide.jpg/413px-St._Francis_Dam_site_dike_and_landslide.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/St._Francis_Dam_site_dike_and_landslide.jpg/550px-St._Francis_Dam_site_dike_and_landslide.jpg 2x" data-file-width="3996" data-file-height="2000" /></a></span></div><div class="thumbcaption">Looking across the canyon at the former dam site in 2009, with outlines of recent and post-collapse landslides visible on the far banks</div></div></div></div></div> <p>At present, the popular hypothesis is that collapse may have begun with the eastern abutment of the dam giving way, possibly due to a landslide. This scenario, having its roots in the works of Willis and Grunsky, was expanded upon by the author Charles Outland in his 1963 book <i>Man‑Made Disaster: The Story of St. Francis Dam</i>. The material on which the eastern abutment of the dam had been built may itself have been part of an ancient landslide, but this would have been impossible for almost any geologists of the 1920s to detect. Indeed, the site had been inspected twice, at different times, by two of the leading geologists and civil engineers of the day, Grunsky and <a href="/wiki/John_C._Branner" class="mw-redirect" title="John C. Branner">John C. Branner</a> of Stanford University; neither found fault with the San Francisquito rock.<sup id="cite_ref-FOOTNOTERogers199581_87-0" class="reference"><a href="#cite_note-FOOTNOTERogers199581-87"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup> </p><p>J. David Rogers,<sup id="cite_ref-88" class="reference"><a href="#cite_note-88"><span class="cite-bracket">[</span>88<span class="cite-bracket">]</span></a></sup> inspired by the work of Outland, investigated the failure and published an extensive scenario, albeit somewhat controversial, of the possible geological and <a href="/wiki/Rock_mechanics" title="Rock mechanics">rock mechanic</a> actions which may have led to the dam's failure. He attributed the failure to three major factors: the instability of the ancient landslide material on which the dam was built, the failure to compensate for the additional height added to the dam's design, and the design and construction being overseen by only one person.<sup id="cite_ref-Reassessment_31-3" class="reference"><a href="#cite_note-Reassessment-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p><p>A critique of Rogers' historical analysis of the dam's collapse was published in the journal <i>California History</i> in 2004 by historians Norris Hundley Jr. (Professor Emeritus, <a href="/wiki/UCLA" class="mw-redirect" title="UCLA">UCLA</a>) and Donald C. Jackson (Professor, <a href="/wiki/Lafayette_College" title="Lafayette College">Lafayette College</a>). While accepting most of his geological analysis of the failure, the article makes clearer the differences and deficiencies of the structure built in San Francisquito Canyon and how it fell short of the standards for large-scale concrete gravity dams as practiced by other prominent dam engineers in the 1920s.<sup id="cite_ref-Privilege_and_Responsibility_67-2" class="reference"><a href="#cite_note-Privilege_and_Responsibility-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Mulholland_Dam_reinforcement">Mulholland Dam reinforcement</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=11" title="Edit section: Mulholland Dam reinforcement"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Shortly after the disaster, many living below <a href="/wiki/Mulholland_Dam" title="Mulholland Dam">Mulholland Dam</a>, which creates the <a href="/wiki/Hollywood_Reservoir" title="Hollywood Reservoir">Hollywood Reservoir</a>, feared a similar disaster and began to protest, petitioning the City of Los Angeles to drain the reservoir and remove the dam.<sup id="cite_ref-89" class="reference"><a href="#cite_note-89"><span class="cite-bracket">[</span>89<span class="cite-bracket">]</span></a></sup> A Committee of Engineers & Geologists to Assess Mulholland Dam was appointed to evaluate the dam's safety. An external review panel to evaluate the structure, convened by the State of California, followed in 1930. The same year, the City of Los Angeles Board of Water & Power Commissioners appointed their own Board of Review for the dam. Although the state's panel did not recommend modification of the dam, both panels came to similar conclusions: that the dam lacked what was then considered sufficient uplift relief, which could lead to destabilization, and was unacceptable. Again in 1931, a fourth panel, the Board of Engineers to Evaluate Mulholland Dam, was appointed to assess the structure. As well, an external study group appointed by the Board of Water & Power Commissioners produced a "Geological Report of the Suitability of Foundations". Certain design deficiencies were uncovered in the plans made by the engineering department during the planning phase of the dam. These had to do with the dam's base width in conjunction to its ability to resist uplift and sliding and to withstand earthquake loading.<sup id="cite_ref-FOOTNOTERogers199585_90-0" class="reference"><a href="#cite_note-FOOTNOTERogers199585-90"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup> </p><p>The decision was made to permanently keep the Hollywood Reservoir drawn down. It was also decided to keep the amount stored in the reservoir to no more than 4,000 acre⋅ft (4,900,000 m<sup>3</sup>) and to place an enormous amount of earth, 330,000 cu yd (250,000 m<sup>3</sup>), on the dam's downstream face to increase its resistance against hydraulic uplift and earthquake forces, and to screen it from public view. This work was carried out in 1933–34.<sup id="cite_ref-FOOTNOTERogers199586_91-0" class="reference"><a href="#cite_note-FOOTNOTERogers199586-91"><span class="cite-bracket">[</span>91<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-92" class="reference"><a href="#cite_note-92"><span class="cite-bracket">[</span>92<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Legacy">Legacy</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=12" title="Edit section: Legacy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:St._Francis_Dam_base_remains_tkksummers.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/54/St._Francis_Dam_base_remains_tkksummers.jpg/300px-St._Francis_Dam_base_remains_tkksummers.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/54/St._Francis_Dam_base_remains_tkksummers.jpg/450px-St._Francis_Dam_base_remains_tkksummers.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/54/St._Francis_Dam_base_remains_tkksummers.jpg/600px-St._Francis_Dam_base_remains_tkksummers.jpg 2x" data-file-width="4000" data-file-height="3000" /></a><figcaption>Remains of the "Tombstone" section of the dam in 2009. The partially buried edges of the stair-stepped face of the dam are visible.</figcaption></figure> <p>The only visible remains of the St. Francis Dam are weathered, broken chunks of gray concrete and the rusted remnants of the handrails that lined the top of the dam and the wing dike. The ruins and the scar from the ancient landslide can be seen from San Francisquito Canyon Road. Large chunks of debris can still be found scattered about the creek bed south of the dam's original site.<sup id="cite_ref-KCET_2019-07-19_93-0" class="reference"><a href="#cite_note-KCET_2019-07-19-93"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> </p><p>The site of the disaster is registered as <a href="/wiki/California_Historical_Landmark" title="California Historical Landmark">California Historical Landmark</a> #919.<sup id="cite_ref-CHL_1-1" class="reference"><a href="#cite_note-CHL-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The landmark is located on the grounds of Powerhouse <span class="nowrap">No. 2</span> and is near San Francisquito Canyon Road.<sup id="cite_ref-KCET_2019-07-19_93-1" class="reference"><a href="#cite_note-KCET_2019-07-19-93"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> The marker reads: </p> <blockquote><p>NO. 919 ST. FRANCIS DAM DISASTER SITE – The 185-foot concrete St. Francis Dam, part of the Los Angeles aqueduct system, stood a mile and a half north of this spot. On March 12, 1928, just before midnight, it collapsed and sent over twelve billion gallons of water roaring down the valley of the Santa Clara River. Over 450 lives were lost in this, one of California's greatest disasters.</p></blockquote> <p>San Francisquito Canyon Road sustained heavy storm damage in 2005, and when rebuilt in 2009 it was re-routed away from the original roadbed and the remains of the main section of the dam. The new road is routed through a cut which was made in the hillside on the western edge of the wing dike.<sup id="cite_ref-94" class="reference"><a href="#cite_note-94"><span class="cite-bracket">[</span>94<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="National_Monument_and_National_Memorial">National Monument and National Memorial</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=13" title="Edit section: National Monument and National Memorial"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/John_D._Dingell,_Jr._Conservation,_Management,_and_Recreation_Act" class="mw-redirect" title="John D. Dingell, Jr. Conservation, Management, and Recreation Act">John D. Dingell, Jr. Conservation, Management, and Recreation Act</a>, signed March 12, 2019, established the <i>Saint Francis Dam Disaster <a href="/wiki/List_of_national_monuments_of_the_United_States" title="List of national monuments of the United States">National Monument</a></i> and authorized the establishment of the <i>Saint Francis Dam Disaster <a href="/wiki/List_of_national_memorials_of_the_United_States" title="List of national memorials of the United States">National Memorial</a></i>. The sites will be administered by the <a href="/wiki/United_States_Forest_Service" title="United States Forest Service">United States Forest Service</a> within <a href="/wiki/Angeles_National_Forest" title="Angeles National Forest">Angeles National Forest</a> to commemorate the collapse of the dam and preserve 353 acres (143 ha) of land for recreation and protection of resources.<sup id="cite_ref-95" class="reference"><a href="#cite_note-95"><span class="cite-bracket">[</span>95<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-96" class="reference"><a href="#cite_note-96"><span class="cite-bracket">[</span>96<span class="cite-bracket">]</span></a></sup> Access to the Monument will be by foot via Old San Francisquito Canyon Road.<sup id="cite_ref-97" class="reference"><a href="#cite_note-97"><span class="cite-bracket">[</span>97<span class="cite-bracket">]</span></a></sup> </p><p>The <a rel="nofollow" class="external text" href="https://stfrancisdammemorial.org/">St. Francis Dam National Memorial Foundation</a> is a non-profit organization, established in 2019, with the goal of raising funds to support the United States Forest Service in building and maintaining the St. Francis Dam Disaster National Memorial and Monument, including the construction of a visitor center and a memorial wall with the names of all the identified victims.<sup id="cite_ref-98" class="reference"><a href="#cite_note-98"><span class="cite-bracket">[</span>98<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-99" class="reference"><a href="#cite_note-99"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup> A winning memorial design was announced in April 2023.<sup id="cite_ref-100" class="reference"><a href="#cite_note-100"><span class="cite-bracket">[</span>100<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Documentaries">Documentaries</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=14" title="Edit section: Documentaries"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The rise of Mulholland, Los Angeles' water issues, and the collapse of the dam are dealt with in the 2018 documentary film, <i>Forgotten Tragedy: The Story of The St Francis Dam</i>, by Jesse Cash.<sup id="cite_ref-101" class="reference"><a href="#cite_note-101"><span class="cite-bracket">[</span>101<span class="cite-bracket">]</span></a></sup> </p><p>The story of the dam's construction and catastrophic failure is also the subject of the documentary <i>Flood in the Desert</i>, which was first broadcast in May 2022 as part of the <i><a href="/wiki/American_Experience" title="American Experience">American Experience</a></i> series on <a href="/wiki/PBS" title="PBS">PBS</a>. </p> <div class="mw-heading mw-heading2"><h2 id="In_popular_culture">In popular culture</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=15" title="Edit section: In popular culture"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Numerous fictionalized references are made to Mulholland, the California Water Wars, the aqueduct and the St. Francis Dam disaster in the 1974 movie <i><a href="/wiki/Chinatown_(1974_film)" title="Chinatown (1974 film)">Chinatown</a></i>.<sup id="cite_ref-102" class="reference"><a href="#cite_note-102"><span class="cite-bracket">[</span>102<span class="cite-bracket">]</span></a></sup></li> <li>Rock musician <a href="/wiki/Black_Francis" title="Black Francis">Frank Black</a> makes several references to the St. Francis Dam disaster in his songs "St. Francis Dam Disaster"<sup id="cite_ref-103" class="reference"><a href="#cite_note-103"><span class="cite-bracket">[</span>103<span class="cite-bracket">]</span></a></sup> and "Olé Mulholland."<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (March 2018)">citation needed</span></a></i>]</sup></li> <li>The 2014 young adult novel <i>100 Sideways Miles</i> by <a href="/wiki/Andrew_A._Smith" title="Andrew A. Smith">Andrew A. Smith</a> features the current site of the dam disaster as well as some discussion of the historical event.<sup id="cite_ref-Smith2015_104-0" class="reference"><a href="#cite_note-Smith2015-104"><span class="cite-bracket">[</span>104<span class="cite-bracket">]</span></a></sup></li> <li>The 2015 filk song <i>Lucy on the Line</i> by Tim Griffin and <a href="/wiki/Maya_Kaathryn_Bohnhoff" title="Maya Kaathryn Bohnhoff">Maya Bohnhoff</a> commemorates the brave "Hello Girl" telephone operators who, at risk to their lives, kept calling residents down the flood path, warning them to evacuate. <sup id="cite_ref-105" class="reference"><a href="#cite_note-105"><span class="cite-bracket">[</span>105<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=16" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_national_memorials_of_the_United_States" title="List of national memorials of the United States">List of national memorials of the United States</a></li> <li><a href="/wiki/List_of_national_monuments_of_the_United_States#List_of_national_monuments" title="List of national monuments of the United States">List of national monuments of the United States</a></li> <li><a href="/wiki/List_of_dams_and_reservoirs_in_California" title="List of dams and reservoirs in California">List of dams and reservoirs in California</a></li> <li><a href="/wiki/Baldwin_Hills_Reservoir" class="mw-redirect" title="Baldwin Hills Reservoir">Baldwin Hills Reservoir</a></li> <li><a href="/wiki/Malpasset_Dam" title="Malpasset Dam">Malpasset Dam</a></li> <li><a href="/wiki/Johnstown_Flood" title="Johnstown Flood">Johnstown Flood</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=17" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Notes</b> </p> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 33em;"> <ol class="references"> <li id="cite_note-CHL-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-CHL_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-CHL_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ohp.parks.ca.gov/ListedResources/Detail/919">"St. Francis Dam Disaster Site"</a>. Office of Historic Preservation, California State Parks<span class="reference-accessdate">. Retrieved <span class="nowrap">October 8,</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=St.+Francis+Dam+Disaster+Site&rft.pub=Office+of+Historic+Preservation%2C+California+State+Parks&rft_id=http%3A%2F%2Fohp.parks.ca.gov%2FListedResources%2FDetail%2F919&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFStansell2014" class="citation thesis cs1">Stansell, Ann (August 2014). <a rel="nofollow" class="external text" href="https://www.academia.edu/11242671"><i>Memorialization and Memory of Southern California's St. Francis Dam Disaster of 1928</i></a>. <i>California State University, Northridge</i> (Thesis).</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.title=Memorialization+and+Memory+of+Southern+California%27s+St.+Francis+Dam+Disaster+of+1928&rft.date=2014-08&rft.aulast=Stansell&rft.aufirst=Ann&rft_id=https%3A%2F%2Fwww.academia.edu%2F11242671&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFStansell2014" class="citation web cs1">Stansell, Ann C. (February 2014). <a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/annstansell_damvictims022214.htm">"Roster of St. Francis Dam Disaster Victims"</a>. Santa Clarita Valley History In Pictures.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Roster+of+St.+Francis+Dam+Disaster+Victims&rft.pub=Santa+Clarita+Valley+History+In+Pictures&rft.date=2014-02&rft.aulast=Stansell&rft.aufirst=Ann+C.&rft_id=http%3A%2F%2Fwww.scvhistory.com%2Fscvhistory%2Fannstansell_damvictims022214.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPeter_Hartlaub2023" class="citation news cs1">Peter Hartlaub (January 11, 2023). <a rel="nofollow" class="external text" href="https://www.sfchronicle.com/oursf/article/How-bad-was-California-s-Great-Flood-of-17711100.php">"How bad was California's 'Great Flood' of 1862? It was a torrent of horrors"</a>. <i>San Francisco Tribune</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20230120112158/https://www.sfchronicle.com/oursf/article/How-bad-was-California-s-Great-Flood-of-17711100.php">Archived</a> from the original on January 20, 2023<span class="reference-accessdate">. Retrieved <span class="nowrap">July 3,</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=San+Francisco+Tribune&rft.atitle=How+bad+was+California%27s+%27Great+Flood%27+of+1862%3F+It+was+a+torrent+of+horrors&rft.date=2023-01-11&rft.au=Peter+Hartlaub&rft_id=https%3A%2F%2Fwww.sfchronicle.com%2Foursf%2Farticle%2FHow-bad-was-California-s-Great-Flood-of-17711100.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFJon_Schlosberg2020" class="citation news cs1">Jon Schlosberg (December 7, 2020). <a rel="nofollow" class="external text" href="https://abc7chicago.com/californias-trillion-dollar-mega-disaster-no-one-is-talking-about/8504765/">"California's 'trillion dollar' mega disaster no one is talking about"</a>. <i>ABC 7 Chicago</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20201207162408/https://abc7chicago.com/californias-trillion-dollar-mega-disaster-no-one-is-talking-about/8504765/">Archived</a> from the original on December 7, 2020<span class="reference-accessdate">. Retrieved <span class="nowrap">September 20,</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=ABC+7+Chicago&rft.atitle=California%27s+%27trillion+dollar%27+mega+disaster+no+one+is+talking+about&rft.date=2020-12-07&rft.au=Jon+Schlosberg&rft_id=https%3A%2F%2Fabc7chicago.com%2Fcalifornias-trillion-dollar-mega-disaster-no-one-is-talking-about%2F8504765%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.seecalifornia.com/california/california-worst-disasters.html">"California's Worst Disasters Remembered"</a> seecalifornia.com. Quote: "600 people in 1928 died in the St. Francis Dam flood in Santa Clarita. It was around midnight that Southern California suffered one of the worst disasters in the state's history, second only to the earthquake and fire that devastated San Francisco in 1906."</span> </li> <li id="cite_note-William_Mulholland-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-William_Mulholland_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-William_Mulholland_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-William_Mulholland_7-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text">Mulholland, Catherine, <i>William Mulholland and the St. Francis Dam; St. Francis Dam Disaster Revisited</i>, Nunis Jr., Doyce B. (Ed.) Historical Society of Southern California. 1995. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-914421-13-1" title="Special:BookSources/0-914421-13-1">0-914421-13-1</a></span> </li> <li id="cite_note-Mulholland-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-Mulholland_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Mulholland_8-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Water and Power Associates Inc. <a rel="nofollow" class="external text" href="http://waterandpower.org/museum/Mulholland_Biography.html">"William Mulholland Biography"</a></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text">Water and Power Associates Inc. <a rel="nofollow" class="external text" href="http://waterandpower.org/museum/Name_Change_Chronology_of_DWP.html">"DWP – Name Change Chronology"</a></span> </li> <li id="cite_note-ASCE-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-ASCE_10-0">^</a></b></span> <span class="reference-text">American Society of Civil Engineers <a rel="nofollow" class="external text" href="http://www.asce.org/People-and-Projects/Projects/Landmarks/First-Owens-River---Los-Angeles-Aqueduct/">"First Owens River – Los Angeles Aqueduct"</a></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ladwpnews.com/go/doc/1475/1683763">"Los Angeles City Council Declares 2013: Year of the L.A. Aqueduct"</a>. LADWP. January 18, 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">March 11,</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Los+Angeles+City+Council+Declares+2013%3A+Year+of+the+L.A.+Aqueduct&rft.pub=LADWP&rft.date=2013-01-18&rft_id=http%3A%2F%2Fwww.ladwpnews.com%2Fgo%2Fdoc%2F1475%2F1683763&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBlitz2015" class="citation magazine cs1">Blitz, Matt (March 12, 2015). <a rel="nofollow" class="external text" href="https://www.smithsonianmag.com/history/occasions-i-envy-dead-st-francis-dam-disaster-180954543/">"On Occasions Like This, I Envy the Dead: The St. Francis Dam Disaster"</a>. <i>Smithsonian Magazine</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 4,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Smithsonian+Magazine&rft.atitle=On+Occasions+Like+This%2C+I+Envy+the+Dead%3A+The+St.+Francis+Dam+Disaster&rft.date=2015-03-12&rft.aulast=Blitz&rft.aufirst=Matt&rft_id=https%3A%2F%2Fwww.smithsonianmag.com%2Fhistory%2Foccasions-i-envy-dead-st-francis-dam-disaster-180954543%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTERogers199521-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTERogers199521_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTERogers199521_13-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 21.</span> </li> <li id="cite_note-FOOTNOTEOutland200254–55-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200254–55_14-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 54–55.</span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text">Sixth Annual Report of the Bureau of the Los Angeles Aqueduct to the Board of Public Works, 1911</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest192838–45-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest192838–45_16-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, pp. 38–45.</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.laalmanac.com/population/po02.htm">"Historical Resident Population City & County of Los Angeles, 1850 to 2000"</a>. LA Almanac<span class="reference-accessdate">. Retrieved <span class="nowrap">November 20,</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Historical+Resident+Population+City+%26+County+of+Los+Angeles%2C+1850+to+2000&rft.pub=LA+Almanac&rft_id=http%3A%2F%2Fwww.laalmanac.com%2Fpopulation%2Fpo02.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEKahrl1983312-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEKahrl1983312_18-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFKahrl1983">Kahrl 1983</a>, p. 312.</span> </li> <li id="cite_note-FOOTNOTEOutland2002123-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002123_19-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 123.</span> </li> <li id="cite_note-FOOTNOTERogers199523–26-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199523–26_20-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, pp. 23–26.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928319–20-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928319–20_21-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, pp. 319–20.</span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-22">^</a></b></span> <span class="reference-text">Rogers, David J. "Impacts of the 1928 St. Francis Dam Failure on Geology, Civil Engineering, and America, p. 2"</span> </li> <li id="cite_note-FOOTNOTERogers199530-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199530_23-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 30.</span> </li> <li id="cite_note-FOOTNOTEOutland200229-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200229_24-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 29.</span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text">Official Action Taken by the Board of Public Service Commissioners and Board of Water and Power Commissioners of the City of Los Angeles, Relative to the St. Francis Reservoir</span> </li> <li id="cite_note-FOOTNOTEOutland200233-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200233_26-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 33.</span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-27">^</a></b></span> <span class="reference-text">Annual Reports of the Board of Public Service Commissioners 1924–1925</span> </li> <li id="cite_note-FOOTNOTEOutland200230-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200230_28-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 30.</span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text">24th Annual Report of the Board of Public Service Commissioners, Report of the Office Engineer</span> </li> <li id="cite_note-FOOTNOTEOutland2002201-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002201_30-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 201.</span> </li> <li id="cite_note-Reassessment-31"><span class="mw-cite-backlink">^ <a href="#cite_ref-Reassessment_31-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Reassessment_31-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Reassessment_31-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Reassessment_31-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text">Rogers, J. David. <a rel="nofollow" class="external text" href="http://web.mst.edu/~rogersda/st_francis_dam/reassessment_of_st_francis_dam_failure.pdf"><i>Reassessment of the St. Francis Dam Failure</i></a> 2013 Missouri University of Science & Technology</span> </li> <li id="cite_note-Rise-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-Rise_32-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFMulholland2000" class="citation book cs1">Mulholland, Catherine (2000). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/williammulhollan00mulh/page/320"><i>William Mulholland and the Rise of Los Angeles</i></a></span>. Berkeley and Los Angeles: University of California Press. p. <a rel="nofollow" class="external text" href="https://archive.org/details/williammulhollan00mulh/page/320">320</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-520-21724-1" title="Special:BookSources/0-520-21724-1"><bdi>0-520-21724-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=William+Mulholland+and+the+Rise+of+Los+Angeles&rft.place=Berkeley+and+Los+Angeles&rft.pages=320&rft.pub=University+of+California+Press&rft.date=2000&rft.isbn=0-520-21724-1&rft.aulast=Mulholland&rft.aufirst=Catherine&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fwilliammulhollan00mulh%2Fpage%2F320&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEOutland2002198-33"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002198_33-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 198.</span> </li> <li id="cite_note-FOOTNOTEOutland200246-34"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEOutland200246_34-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland200246_34-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 46.</span> </li> <li id="cite_note-FOOTNOTEOutland200249-35"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEOutland200249_35-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland200249_35-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland200249_35-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland200249_35-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 49.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928547-36"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928547_36-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, p. 547.</span> </li> <li id="cite_note-37"><span class="mw-cite-backlink"><b><a href="#cite_ref-37">^</a></b></span> <span class="reference-text">Nadeau, Remi A. <i>The Water Seekers</i>. New York: Doubleday, 1950. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-9627104-5-8" title="Special:BookSources/0-9627104-5-8">0-9627104-5-8</a></span> </li> <li id="cite_note-38"><span class="mw-cite-backlink"><b><a href="#cite_ref-38">^</a></b></span> <span class="reference-text">Los Angeles Department of Water and Power <a rel="nofollow" class="external text" href="http://wsoweb.ladwp.com/Aqueduct/historyoflaa/whoeverbrings.htm">"Whoever Brings the Water Brings the People"</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130121082105/http://wsoweb.ladwp.com/Aqueduct/historyoflaa/whoeverbrings.htm">Archived</a> January 21, 2013, at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> <li id="cite_note-FOOTNOTEOutland2002200-39"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002200_39-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 200.</span> </li> <li id="cite_note-FOOTNOTERogers199535-40"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199535_40-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 35.</span> </li> <li id="cite_note-FOOTNOTEOutland200253-41"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200253_41-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 53.</span> </li> <li id="cite_note-FOOTNOTEOutland200251-42"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200251_42-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 51.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928384-43"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928384_43-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, p. 384.</span> </li> <li id="cite_note-FOOTNOTEOutland200267-44"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200267_44-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 67.</span> </li> <li id="cite_note-FOOTNOTEOutland200269-45"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEOutland200269_45-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland200269_45-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 69.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest192890–94-46"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest192890–94_46-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, pp. 90–94.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928641–45-47"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928641–45_47-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, pp. 641–45.</span> </li> <li id="cite_note-Victims_and_Heroes-48"><span class="mw-cite-backlink">^ <a href="#cite_ref-Victims_and_Heroes_48-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Victims_and_Heroes_48-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPollack2008" class="citation journal cs1">Pollack, Alan (March–April 2008). <a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/pollack0308victims.htm">"St. Francis Dam Disaster: Victims and Heroes"</a>. <i>The Heritage Junction Dispatch</i>. Santa Clara Valley Historical Society.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Heritage+Junction+Dispatch&rft.atitle=St.+Francis+Dam+Disaster%3A+Victims+and+Heroes&rft.date=2008-03%2F2008-04&rft.aulast=Pollack&rft.aufirst=Alan&rft_id=http%3A%2F%2Fwww.scvhistory.com%2Fscvhistory%2Fpollack0308victims.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928468-49"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928468_49-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, p. 468.</span> </li> <li id="cite_note-FOOTNOTEOutland2002108-50"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002108_50-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 108.</span> </li> <li id="cite_note-FOOTNOTEOutland2002222–23-51"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTEOutland2002222–23_51-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTEOutland2002222–23_51-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 222–23.</span> </li> <li id="cite_note-FOOTNOTEOutland200273–74-52"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200273–74_52-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 73–74.</span> </li> <li id="cite_note-FOOTNOTEOutland200296-53"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200296_53-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 96.</span> </li> <li id="cite_note-54"><span class="mw-cite-backlink"><b><a href="#cite_ref-54">^</a></b></span> <span class="reference-text">Charles H. Lee collection, Water Resources Collections and Archives, University of California, Riverside</span> </li> <li id="cite_note-FOOTNOTEOutland200295–96-55"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland200295–96_55-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 95–96.</span> </li> <li id="cite_note-FOOTNOTEOutland2002127-56"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002127_56-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 127.</span> </li> <li id="cite_note-57"><span class="mw-cite-backlink"><b><a href="#cite_ref-57">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFHowry2018" class="citation news cs1">Howry, Andrea (March 9, 2018). <a rel="nofollow" class="external text" href="https://www.vcstar.com/story/news/local/2018/03/02/fillmore-santa-paula-prepare-90th-anniversary-st-francis-dam/365337002/">"Fillmore, Santa Paula prepare to mark 90th anniversary of St. Francis Dam disaster"</a>. <i>Ventura County Star</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 4,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Ventura+County+Star&rft.atitle=Fillmore%2C+Santa+Paula+prepare+to+mark+90th+anniversary+of+St.+Francis+Dam+disaster&rft.date=2018-03-09&rft.aulast=Howry&rft.aufirst=Andrea&rft_id=https%3A%2F%2Fwww.vcstar.com%2Fstory%2Fnews%2Flocal%2F2018%2F03%2F02%2Ffillmore-santa-paula-prepare-90th-anniversary-st-francis-dam%2F365337002%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-58"><span class="mw-cite-backlink"><b><a href="#cite_ref-58">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPreston2018" class="citation news cs1">Preston, Benjamin (May 16, 2018). <a rel="nofollow" class="external text" href="https://www.motorcyclistonline.com/thornton-edwards-and-st-francis-dam-disaster/">"Thornton Edwards And The St. Francis Dam Disaster"</a>. <i>Motorcyclist</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 4,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Motorcyclist&rft.atitle=Thornton+Edwards+And+The+St.+Francis+Dam+Disaster&rft.date=2018-05-16&rft.aulast=Preston&rft.aufirst=Benjamin&rft_id=https%3A%2F%2Fwww.motorcyclistonline.com%2Fthornton-edwards-and-st-francis-dam-disaster%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-59"><span class="mw-cite-backlink"><b><a href="#cite_ref-59">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFKelly2010" class="citation web cs1">Kelly, Peggy (2010). <a rel="nofollow" class="external text" href="https://scvhistory.com/scvhistory/peggykelly_edwards1.htm">"Thornton Edwards, Hero of the St. Francis Dam Disaster"</a>. <i>SCVHistory.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 4,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=SCVHistory.com&rft.atitle=Thornton+Edwards%2C+Hero+of+the+St.+Francis+Dam+Disaster&rft.date=2010&rft.aulast=Kelly&rft.aufirst=Peggy&rft_id=https%3A%2F%2Fscvhistory.com%2Fscvhistory%2Fpeggykelly_edwards1.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-60"><span class="mw-cite-backlink"><b><a href="#cite_ref-60">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPollack2014" class="citation web cs1">Pollack, Alan (March 13, 2014). <a rel="nofollow" class="external text" href="https://scvhistory.com/scvhistory/stfrancistimeline_pollack2014.htm">"St. Francis Dam Disaster: An Extended Timeline"</a>. <i>Santa Clarita Valley Historical Society</i><span class="reference-accessdate">. Retrieved <span class="nowrap">March 4,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Santa+Clarita+Valley+Historical+Society&rft.atitle=St.+Francis+Dam+Disaster%3A+An+Extended+Timeline&rft.date=2014-03-13&rft.aulast=Pollack&rft.aufirst=Alan&rft_id=https%3A%2F%2Fscvhistory.com%2Fscvhistory%2Fstfrancistimeline_pollack2014.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEOutland2002193–94-61"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002193–94_61-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 193–94.</span> </li> <li id="cite_note-FOOTNOTEOutland2002203-62"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002203_62-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 203.</span> </li> <li id="cite_note-FOOTNOTEOutland2002193-63"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002193_63-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 193.</span> </li> <li id="cite_note-Swing-Johnson_USBR_History-64"><span class="mw-cite-backlink"><b><a href="#cite_ref-Swing-Johnson_USBR_History_64-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100928180218/http://www.usbr.gov/lc/hooverdam/History/articles/chrono.html">"The Story of Hoover Dam – Chronology"</a>. United States Bureau of Reclamation. March 13, 2015. Archived from <a rel="nofollow" class="external text" href="https://www.usbr.gov/lc/hooverdam/history/articles/chrono.html">the original</a> on September 28, 2010<span class="reference-accessdate">. Retrieved <span class="nowrap">August 4,</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Story+of+Hoover+Dam+%E2%80%93+Chronology&rft.pub=United+States+Bureau+of+Reclamation&rft.date=2015-03-13&rft_id=http%3A%2F%2Fwww.usbr.gov%2Flc%2Fhooverdam%2Fhistory%2Farticles%2Fchrono.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-65"><span class="mw-cite-backlink"><b><a href="#cite_ref-65">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFStevens,_Joseph_E1988" class="citation book cs1">Stevens, Joseph E (1988). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=GIuNBQAAQBAJ&pg=PA27"><i>Hoover Dam: An American Adventure</i></a>. University of Oklahoma Press. p. 27. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0806173979" title="Special:BookSources/978-0806173979"><bdi>978-0806173979</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Hoover+Dam%3A+An+American+Adventure&rft.pages=27&rft.pub=University+of+Oklahoma+Press&rft.date=1988&rft.isbn=978-0806173979&rft.au=Stevens%2C+Joseph+E&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DGIuNBQAAQBAJ%26pg%3DPA27&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEWiley1928123-66"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEWiley1928123_66-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFWiley1928">Wiley 1928</a>, p. 123.</span> </li> <li id="cite_note-Privilege_and_Responsibility-67"><span class="mw-cite-backlink">^ <a href="#cite_ref-Privilege_and_Responsibility_67-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Privilege_and_Responsibility_67-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Privilege_and_Responsibility_67-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFJacksonHundley2023" class="citation journal cs1">Jackson, Donald C.; Hundley, Norris (November 16, 2023). <a rel="nofollow" class="external text" href="https://dspace.lafayette.edu/handle/10385/1563">"Privilege and Responsibility: William Mulholland and the St. Francis Dam Disaster"</a>. <i>California History (Fall 2004)</i>. <b>82</b> (3): <span class="nowrap">8–</span>47. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.2307%2F25161743">10.2307/25161743</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a> <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/25161743">25161743</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=California+History+%28Fall+2004%29&rft.atitle=Privilege+and+Responsibility%3A+William+Mulholland+and+the+St.+Francis+Dam+Disaster&rft.volume=82&rft.issue=3&rft.pages=%3Cspan+class%3D%22nowrap%22%3E8-%3C%2Fspan%3E47&rft.date=2023-11-16&rft_id=info%3Adoi%2F10.2307%2F25161743&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F25161743%23id-name%3DJSTOR&rft.aulast=Jackson&rft.aufirst=Donald+C.&rft.au=Hundley%2C+Norris&rft_id=https%3A%2F%2Fdspace.lafayette.edu%2Fhandle%2F10385%2F1563&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-LA_City_Council_Report-68"><span class="mw-cite-backlink">^ <a href="#cite_ref-LA_City_Council_Report_68-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-LA_City_Council_Report_68-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Report of Committee appointed by the City Council of Los Angeles to investigate and report the cause of the failure of the St. Francis Dam</span> </li> <li id="cite_note-:0-69"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_69-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_69-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-:0_69-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFWilkman2016" class="citation book cs1">Wilkman, Jon (2016). <a rel="nofollow" class="external text" href="https://openlibrary.org/works/OL20018474W/Floodpath"><i>Floodpath: the deadliest man-made disaster of 20th-century America and the making of modern Los Angeles</i></a>. Bloomsbury Press. pp. <span class="nowrap">228–</span>231. Archived from <a rel="nofollow" class="external text" href="http://catalog.library.washco.utah.gov/client/en_US/default/search/detailnonmodal?d=ent%3A%2F%2FSD_ILS%2F0%2FSD_ILS%3A992559~~0">the original</a> on August 12, 2022<span class="reference-accessdate">. Retrieved <span class="nowrap">August 12,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Floodpath%3A+the+deadliest+man-made+disaster+of+20th-century+America+and+the+making+of+modern+Los+Angeles&rft.pages=%3Cspan+class%3D%22nowrap%22%3E228-%3C%2Fspan%3E231&rft.pub=Bloomsbury+Press&rft.date=2016&rft.aulast=Wilkman&rft.aufirst=Jon&rft_id=http%3A%2F%2Fcatalog.library.washco.utah.gov%2Fclient%2Fen_US%2Fdefault%2Fsearch%2Fdetailnonmodal%3Fd%3Dent%253A%252F%252FSD_ILS%252F0%252FSD_ILS%253A992559~~0&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: CS1 maint: date and year (<a href="/wiki/Category:CS1_maint:_date_and_year" title="Category:CS1 maint: date and year">link</a>)</span></span> </li> <li id="cite_note-FOOTNOTEOutland2002204-70"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002204_70-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 204.</span> </li> <li id="cite_note-Grunsky-71"><span class="mw-cite-backlink">^ <a href="#cite_ref-Grunsky_71-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Grunsky_71-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Grunsky_71-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Grunsky_71-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text">Grunsky, C.E. and C.L.; Willis, Bailey "St. Francis Dam Failure" accompanied by "Report on Geology of St. Francis Damsite". <i>Western Construction News</i>, May 1928</span> </li> <li id="cite_note-FOOTNOTEOutland2002208-72"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002208_72-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 208.</span> </li> <li id="cite_note-FOOTNOTERogers199543-73"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199543_73-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 43.</span> </li> <li id="cite_note-FOOTNOTEOutland2002209-74"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002209_74-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, p. 209.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928642–44-75"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928642–44_75-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, pp. 642–44.</span> </li> <li id="cite_note-FOOTNOTEOutland2002209–12-76"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEOutland2002209–12_76-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFOutland2002">Outland 2002</a>, pp. 209–12.</span> </li> <li id="cite_note-77"><span class="mw-cite-backlink"><b><a href="#cite_ref-77">^</a></b></span> <span class="reference-text">SCV Historical Society <a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/ap2330.htm">"Construction of the St. Francis Dam"</a></span> </li> <li id="cite_note-78"><span class="mw-cite-backlink"><b><a href="#cite_ref-78">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://scvhistory.com/scvhistory/annstansell_damvictims022214.htm">"SCVHistory.com | Roster of St. Francis Dam Victims | Compiled by Ann Stansell, 2011-2014, Updated 2018"</a>. <i>scvhistory.com</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=scvhistory.com&rft.atitle=SCVHistory.com+%26%23124%3B+Roster+of+St.+Francis+Dam+Victims+%26%23124%3B+Compiled+by+Ann+Stansell%2C+2011-2014%2C+Updated+2018&rft_id=https%3A%2F%2Fscvhistory.com%2Fscvhistory%2Fannstansell_damvictims022214.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest192816-79"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest192816_79-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, p. 16.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928378-80"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928378_80-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>, p. 378.</span> </li> <li id="cite_note-FOOTNOTECoroner's_Inquest1928-81"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTECoroner's_Inquest1928_81-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFCoroner's_Inquest1928">Coroner's Inquest 1928</a>.</span> </li> <li id="cite_note-82"><span class="mw-cite-backlink"><b><a href="#cite_ref-82">^</a></b></span> <span class="reference-text">28th Annual Report of the Board of Water & Power Commissioners, Letter to City Council</span> </li> <li id="cite_note-83"><span class="mw-cite-backlink"><b><a href="#cite_ref-83">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://water.ca.gov/Programs/All-Programs/Division-of-Safety-of-Dams/History">"History of California Dam Safety"</a>. State of California<span class="reference-accessdate">. Retrieved <span class="nowrap">March 27,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=History+of+California+Dam+Safety&rft.pub=State+of+California&rft_id=https%3A%2F%2Fwater.ca.gov%2FPrograms%2FAll-Programs%2FDivision-of-Safety-of-Dams%2FHistory&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-84"><span class="mw-cite-backlink"><b><a href="#cite_ref-84">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://water.ca.gov/Programs/All-Programs/Division-of-Safety-of-Dams">"Division of Safety of Dams"</a>. State of California<span class="reference-accessdate">. Retrieved <span class="nowrap">March 27,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Division+of+Safety+of+Dams&rft.pub=State+of+California&rft_id=https%3A%2F%2Fwater.ca.gov%2FPrograms%2FAll-Programs%2FDivision-of-Safety-of-Dams&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-85"><span class="mw-cite-backlink"><b><a href="#cite_ref-85">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20081027043201/http://www.water.ca.gov/damsafety/docs/statutes-regulations.pdf">"Statutes and Regulations pertaining to Supervision of Dams and Reservoirs"</a> <span class="cs1-format">(PDF)</span>. State of California. Archived from <a rel="nofollow" class="external text" href="http://www.water.ca.gov/damsafety/docs/statutes-regulations.pdf">the original</a> <span class="cs1-format">(PDF)</span> on October 27, 2008<span class="reference-accessdate">. Retrieved <span class="nowrap">October 4,</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Statutes+and+Regulations+pertaining+to+Supervision+of+Dams+and+Reservoirs&rft.pub=State+of+California&rft_id=http%3A%2F%2Fwww.water.ca.gov%2Fdamsafety%2Fdocs%2Fstatutes-regulations.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-86"><span class="mw-cite-backlink"><b><a href="#cite_ref-86">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.bpelsg.ca.gov/about_us/history.shtml">A Brief History of the Board</a> Board for Professional Engineers, Land Surveyors, and Geologists, ca.gov</span> </li> <li id="cite_note-FOOTNOTERogers199581-87"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199581_87-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 81.</span> </li> <li id="cite_note-88"><span class="mw-cite-backlink"><b><a href="#cite_ref-88">^</a></b></span> <span class="reference-text">Rogers is Ph.D., P.E., R.G., Karl F. Hasselmann Missouri Chair in Geological Engineering, Department of Geological Sciences & Engineering and professor at <a href="/wiki/Missouri_University_of_Science_and_Technology" title="Missouri University of Science and Technology">Missouri University of Science and Technology</a></span> </li> <li id="cite_note-89"><span class="mw-cite-backlink"><b><a href="#cite_ref-89">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFLayne1957" class="citation book cs1">Layne, L. Gregg (1957). <i>Water and Power For a Great City</i>. Department of Water and Power City of Los Angeles.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Water+and+Power+For+a+Great+City&rft.pub=Department+of+Water+and+Power+City+of+Los+Angeles&rft.date=1957&rft.aulast=Layne&rft.aufirst=L.+Gregg&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTERogers199585-90"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199585_90-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 85.</span> </li> <li id="cite_note-FOOTNOTERogers199586-91"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTERogers199586_91-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFRogers1995">Rogers 1995</a>, p. 86.</span> </li> <li id="cite_note-92"><span class="mw-cite-backlink"><b><a href="#cite_ref-92">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://books.google.com/books?id=uSgDAAAAMBAJ&dq=1930+plane+%22Popular&pg=PA44">"Earth Guards Dam from Quakes."</a> <i>Popular Science</i>, April 1934</span> </li> <li id="cite_note-KCET_2019-07-19-93"><span class="mw-cite-backlink">^ <a href="#cite_ref-KCET_2019-07-19_93-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-KCET_2019-07-19_93-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFHemmerlein2019" class="citation news cs1">Hemmerlein, Sandi (July 19, 2019). <a rel="nofollow" class="external text" href="https://www.kcet.org/shows/socal-wanderer/five-most-fascinating-l-a-dams-where-disasters-struck-and-catastrophes-were-averted">"Five Most Fascinating L.A. Dams, Where Disasters Struck and Catastrophes Were Averted"</a>. <i>KCET</i><span class="reference-accessdate">. Retrieved <span class="nowrap">May 7,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=KCET&rft.atitle=Five+Most+Fascinating+L.A.+Dams%2C+Where+Disasters+Struck+and+Catastrophes+Were+Averted&rft.date=2019-07-19&rft.aulast=Hemmerlein&rft.aufirst=Sandi&rft_id=https%3A%2F%2Fwww.kcet.org%2Fshows%2Fsocal-wanderer%2Ffive-most-fascinating-l-a-dams-where-disasters-struck-and-catastrophes-were-averted&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-94"><span class="mw-cite-backlink"><b><a href="#cite_ref-94">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://www.dailynews.com/general-news/20060226/road-to-close-while-bridge-is-built">"Road to close while bridge is built"</a>. <i>Daily News</i>. February 26, 2006<span class="reference-accessdate">. Retrieved <span class="nowrap">November 24,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Daily+News&rft.atitle=Road+to+close+while+bridge+is+built&rft.date=2006-02-26&rft_id=http%3A%2F%2Fwww.dailynews.com%2Fgeneral-news%2F20060226%2Froad-to-close-while-bridge-is-built&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-95"><span class="mw-cite-backlink"><b><a href="#cite_ref-95">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.congress.gov/bill/116th-congress/senate-bill/47/text">"Text – S.47 – 116th Congress (2019–2020): Natural Resources Management Act"</a>. <i>United States Congress</i>. February 26, 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">February 28,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=United+States+Congress&rft.atitle=Text+%E2%80%93+S.47+%E2%80%93+116th+Congress+%282019%E2%80%932020%29%3A+Natural+Resources+Management+Act&rft.date=2019-02-26&rft_id=https%3A%2F%2Fwww.congress.gov%2Fbill%2F116th-congress%2Fsenate-bill%2F47%2Ftext&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-96"><span class="mw-cite-backlink"><b><a href="#cite_ref-96">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFKisken2019" class="citation news cs1">Kisken, Tom (March 16, 2019). <a rel="nofollow" class="external text" href="https://www.vcstar.com/story/news/local/2019/03/15/trump-signature-memorial-st-francis-dam/3161581002/">"Trump's signature means St. Francis Dam memorial is coming"</a>. <i><a href="/wiki/Ventura_County_Star" title="Ventura County Star">Ventura County Star</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">March 18,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Ventura+County+Star&rft.atitle=Trump%27s+signature+means+St.+Francis+Dam+memorial+is+coming&rft.date=2019-03-16&rft.aulast=Kisken&rft.aufirst=Tom&rft_id=https%3A%2F%2Fwww.vcstar.com%2Fstory%2Fnews%2Flocal%2F2019%2F03%2F15%2Ftrump-signature-memorial-st-francis-dam%2F3161581002%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-97"><span class="mw-cite-backlink"><b><a href="#cite_ref-97">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd872458.pdf">"Saint Francis Dam Disaster National Memorial and Monument"</a> <span class="cs1-format">(PDF)</span>. US Forest Service.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Saint+Francis+Dam+Disaster+National+Memorial+and+Monument&rft.pub=US+Forest+Service&rft_id=https%3A%2F%2Fwww.fs.usda.gov%2FInternet%2FFSE_DOCUMENTS%2Ffseprd872458.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-98"><span class="mw-cite-backlink"><b><a href="#cite_ref-98">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stfrancisdammemorial.org/help-the-usfs-design-the-saint-francis-dam-disaster-national-memorial/?v=7516fd43adaa">"Saint Francis Dam Disaster National Memorial Foundation"</a>. Saint Francis Dam Disaster National Memorial Foundation. February 4, 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">November 2,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Saint+Francis+Dam+Disaster+National+Memorial+Foundation&rft.pub=Saint+Francis+Dam+Disaster+National+Memorial+Foundation&rft.date=2021-02-04&rft_id=https%3A%2F%2Fstfrancisdammemorial.org%2Fhelp-the-usfs-design-the-saint-francis-dam-disaster-national-memorial%2F%3Fv%3D7516fd43adaa&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-99"><span class="mw-cite-backlink"><b><a href="#cite_ref-99">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFLappen2021" class="citation news cs1">Lappen, Josh (May 17, 2021). <a rel="nofollow" class="external text" href="https://www.thenation.com/article/environment/st-francis-dam-disaster-national-monument/">"Exhuming California's St. Francis Dam Disaster"</a>. <i>The Nation</i>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0027-8378">0027-8378</a><span class="reference-accessdate">. Retrieved <span class="nowrap">March 4,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Nation&rft.atitle=Exhuming+California%27s+St.+Francis+Dam+Disaster&rft.date=2021-05-17&rft.issn=0027-8378&rft.aulast=Lappen&rft.aufirst=Josh&rft_id=https%3A%2F%2Fwww.thenation.com%2Farticle%2Fenvironment%2Fst-francis-dam-disaster-national-monument%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-100"><span class="mw-cite-backlink"><b><a href="#cite_ref-100">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://signalscv.com/2023/04/st-francis-dam-memorial-design-winners-announced/">"St. Francis Dam Memorial design winners announced"</a>. <i>The Signal</i>. April 3, 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Signal&rft.atitle=St.+Francis+Dam+Memorial+design+winners+announced&rft.date=2023-04-03&rft_id=https%3A%2F%2Fsignalscv.com%2F2023%2F04%2Fst-francis-dam-memorial-design-winners-announced%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-101"><span class="mw-cite-backlink"><b><a href="#cite_ref-101">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hiida.com/december-2018-winners.html">"December 2018 Winners"</a>. Hollywood International Independent Documentary Awards<span class="reference-accessdate">. Retrieved <span class="nowrap">January 7,</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=December+2018+Winners&rft.pub=Hollywood+International+Independent+Documentary+Awards&rft_id=https%3A%2F%2Fhiida.com%2Fdecember-2018-winners.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-102"><span class="mw-cite-backlink"><b><a href="#cite_ref-102">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFNazaryan2016" class="citation magazine cs1">Nazaryan, Alexander (April 10, 2016). <a rel="nofollow" class="external text" href="http://www.newsweek.com/2016/04/22/st-francis-dam-disaster-los-angeles-warning-engineering-445915.html">"On the edge of L.A. lies the remains of an engineering disaster that offers a warning for us today"</a>. <i>Newsweek</i><span class="reference-accessdate">. Retrieved <span class="nowrap">March 10,</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Newsweek&rft.atitle=On+the+edge+of+L.A.+lies+the+remains+of+an+engineering+disaster+that+offers+a+warning+for+us+today&rft.date=2016-04-10&rft.aulast=Nazaryan&rft.aufirst=Alexander&rft_id=http%3A%2F%2Fwww.newsweek.com%2F2016%2F04%2F22%2Fst-francis-dam-disaster-los-angeles-warning-engineering-445915.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-103"><span class="mw-cite-backlink"><b><a href="#cite_ref-103">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://scvhistory.com/scvhistory/lw2404a.htm">"<span class="cs1-kern-left"></span>'St. Francis Dam Disaster' Song by Frank Black (Black Francis)"</a>. Santa Clarita Valley Historical Society<span class="reference-accessdate">. Retrieved <span class="nowrap">March 10,</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%27St.+Francis+Dam+Disaster%27+Song+by+Frank+Black+%28Black+Francis%29&rft.pub=Santa+Clarita+Valley+Historical+Society&rft_id=https%3A%2F%2Fscvhistory.com%2Fscvhistory%2Flw2404a.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-Smith2015-104"><span class="mw-cite-backlink"><b><a href="#cite_ref-Smith2015_104-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSmith2015" class="citation book cs1">Smith, Andrew (2015). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=aWJ5CgAAQBAJ&pg=PA115"><i>100 Sideways Miles</i></a>. Simon and Schuster. pp. <span class="nowrap">115–</span>16. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1442444966" title="Special:BookSources/978-1442444966"><bdi>978-1442444966</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">March 11,</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=100+Sideways+Miles&rft.pages=%3Cspan+class%3D%22nowrap%22%3E115-%3C%2Fspan%3E16&rft.pub=Simon+and+Schuster&rft.date=2015&rft.isbn=978-1442444966&rft.aulast=Smith&rft.aufirst=Andrew&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DaWJ5CgAAQBAJ%26pg%3DPA115&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> <li id="cite_note-105"><span class="mw-cite-backlink"><b><a href="#cite_ref-105">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://griffined.org/song/lucy-on-the-line">"<span class="cs1-kern-left"></span>'Lucy on the Line' Song by Tim Griffin and Maya Bohnhoff"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">December 5,</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=%27Lucy+on+the+Line%27+Song+by+Tim+Griffin+and+Maya+Bohnhoff&rft_id=https%3A%2F%2Fgriffined.org%2Fsong%2Flucy-on-the-line&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></span> </li> </ol></div> <p><b>Bibliography</b> </p> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFCoroner's_Inquest1928" class="citation web cs1">Coroner's Inquest (1928). <a rel="nofollow" class="external text" href="https://scvhistory.com/scvhistory/sfdcoronersinquest.htm">"Transcript of Testimony and Verdict of the Coroner's Jury In the Inquest Over Victims of St. Francis Dam Disaster: Book 26902"</a>. Los Angeles County Department of Coroner.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Transcript+of+Testimony+and+Verdict+of+the+Coroner%27s+Jury+In+the+Inquest+Over+Victims+of+St.+Francis+Dam+Disaster%3A+Book+26902&rft.pub=Los+Angeles+County+Department+of+Coroner&rft.date=1928&rft.au=Coroner%27s+Inquest&rft_id=https%3A%2F%2Fscvhistory.com%2Fscvhistory%2Fsfdcoronersinquest.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFJacksonHundley2004" class="citation journal cs1">Jackson, Donald C.; Hundley, Norris Jr. (Fall 2004). <a rel="nofollow" class="external text" href="http://ce.jhu.edu/perspectives/handouts_unprotected/stfrancis.pdf">"Privilege and Responsibility: William Mulholland and the St. Francis Dam Disaster"</a> <span class="cs1-format">(PDF)</span>. <i>California History</i>. <b>84</b> (3).</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=California+History&rft.atitle=Privilege+and+Responsibility%3A+William+Mulholland+and+the+St.+Francis+Dam+Disaster&rft.ssn=fall&rft.volume=84&rft.issue=3&rft.date=2004&rft.aulast=Jackson&rft.aufirst=Donald+C.&rft.au=Hundley%2C+Norris+Jr.&rft_id=http%3A%2F%2Fce.jhu.edu%2Fperspectives%2Fhandouts_unprotected%2Fstfrancis.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFKahrl1983" class="citation book cs1">Kahrl, William L. (1983). <i>Water and Power: The Conflict over Los Angeles Water Supply in the Owens Valley</i>. University of California. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-520-05068-1" title="Special:BookSources/0-520-05068-1"><bdi>0-520-05068-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Water+and+Power%3A+The+Conflict+over+Los+Angeles+Water+Supply+in+the+Owens+Valley&rft.pub=University+of+California&rft.date=1983&rft.isbn=0-520-05068-1&rft.aulast=Kahrl&rft.aufirst=William+L.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFMeadHillBeach1928" class="citation report cs1">Mead, Elwood; Hill, Louis; Beach, Lansing (1928). Report of Committee appointed by the City Council of Los Angeles to investigate and report the cause of the failure of the St. Francis Dam (Report).</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=report&rft.btitle=Report+of+Committee+appointed+by+the+City+Council+of+Los+Angeles+to+investigate+and+report+the+cause+of+the+failure+of+the+St.+Francis+Dam&rft.date=1928&rft.aulast=Mead&rft.aufirst=Elwood&rft.au=Hill%2C+Louis&rft.au=Beach%2C+Lansing&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFOutland2002" class="citation book cs1">Outland, Charles F. (2002). <i>Man-Made Disaster: The Story of St Francis Dam</i> (revised ed.). The Arthur H. Clark Company. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87062-322-2" title="Special:BookSources/0-87062-322-2"><bdi>0-87062-322-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Man-Made+Disaster%3A+The+Story+of+St+Francis+Dam&rft.edition=revised&rft.pub=The+Arthur+H.+Clark+Company&rft.date=2002&rft.isbn=0-87062-322-2&rft.aulast=Outland&rft.aufirst=Charles+F.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFRogers1995" class="citation book cs1">Rogers, David J. (1995). "A Man, A Dam and A Disaster". <i>The St. Francis Dam Disaster Revisited Nunis Jr., Doyce B. Ed</i>. Historical Society of Southern. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-914421-13-1" title="Special:BookSources/0-914421-13-1"><bdi>0-914421-13-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=A+Man%2C+A+Dam+and+A+Disaster&rft.btitle=The+St.+Francis+Dam+Disaster+Revisited+Nunis+Jr.%2C+Doyce+B.+Ed&rft.pub=Historical+Society+of+Southern&rft.date=1995&rft.isbn=0-914421-13-1&rft.aulast=Rogers&rft.aufirst=David+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFWiley1928" class="citation book cs1">Wiley, Andrew Jackson; et al. (1928). <a rel="nofollow" class="external text" href="http://babel.hathitrust.org/cgi/pt?id=uc1.$b78132;view=1up;seq=3"><i>Report of the Commission appointed by Governor C. C. Young to investigate the causes leading to the failure of the St. Francis dam near Saugus California</i></a>. California State Printing Office.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Report+of+the+Commission+appointed+by+Governor+C.+C.+Young+to+investigate+the+causes+leading+to+the+failure+of+the+St.+Francis+dam+near+Saugus+California&rft.pub=California+State+Printing+Office&rft.date=1928&rft.aulast=Wiley&rft.aufirst=Andrew+Jackson&rft_id=http%3A%2F%2Fbabel.hathitrust.org%2Fcgi%2Fpt%3Fid%3Duc1.%24b78132%3Bview%3D1up%3Bseq%3D3&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span></li></ul> <p><b>Further reading</b> </p> <ul><li>Horton, Pony R. <i>"A Test of Integrity: The Original Story Upon Which The Docu-Drama is Based"</i>. <ul><li>A popular article detailing the St. Francis Dam disaster. Based on Horton's 25 years of research into the story. Informational sources include Horton's interviews with Catherine Mulholland, Dr. J. David Rogers, and Robert V. Phillips, former Chief Engineer & General Manager, LADWP. A slightly lengthened version of the article was published in 2009 in <i>The Raven and The Writing Desk; The 6th Antelope Valley Anthology</i> by MousePrints Publishing, <a href="/wiki/Lancaster,_California" title="Lancaster, California">Lancaster, California</a>. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-9702112-7-9" title="Special:BookSources/0-9702112-7-9">0-9702112-7-9</a></li></ul></li> <li>Wilkman, John (2016) <i>Floodpath: The Deadliest Man-Made Disaster of 20th-Century America and the Making of Modern Los Angeles</i>, New York: Bloomsbury. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-62040-915-2" title="Special:BookSources/978-1-62040-915-2">978-1-62040-915-2</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=St._Francis_Dam&action=edit&section=18" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:St._Francis_Dam" class="extiw" title="commons:Category:St. Francis Dam">St. Francis Dam</a></span>.</div></div> </div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/stfrancis.htm">"San Francisquito Canyon and the St. Francis Dam"</a>. Santa Clarita Valley Historical Society<span class="reference-accessdate">. Retrieved <span class="nowrap">March 29,</span> 2003</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=San+Francisquito+Canyon+and+the+St.+Francis+Dam&rft.pub=Santa+Clarita+Valley+Historical+Society&rft_id=http%3A%2F%2Fwww.scvhistory.com%2Fscvhistory%2Fstfrancis.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASt.+Francis+Dam" class="Z3988"></span> Several photographs of the dam under construction, completed, its ruins, and a list of the victims.</li> <li><a rel="nofollow" class="external text" href="http://www.scvtv.com/html/legacyfrankrock.html">St. Francis Dam Disaster</a> 30-minute television program available online.</li> <li><a rel="nofollow" class="external text" href="https://www.pbs.org/video/flood-in-the-desert-eu3np1/">PBS American Experience: Flood in the Desert</a></li> <li><a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/sg031101.htm"><i>Remembering the St. Francis Dam Disaster</i></a>, by Michele E. Buttelman, <i>The Signal</i> March 11, 2001.</li> <li><a rel="nofollow" class="external text" href="https://maps.google.com/maps?f=q&hl=en&q=34.547707,+-118.512971&ie=UTF8&z=18&ll=34.547707,-118.512971&spn=0.003579,0.005987&t=k&om=1&iwloc=addr">Google Earth image of the St. Francis Dam ruins</a></li> <li><a rel="nofollow" class="external text" href="http://espace.library.uq.edu.au/view/UQ:164021">"Application of the Method of Characteristics to the Dam Break Wave Problem"</a>, <i>Journal of Hydraulic Research</i>, 47 (1), pp. 41–49.</li> <li><a rel="nofollow" class="external text" href="https://libraryphoto.cr.usgs.gov/cgi-bin/search.cgi?search_mode=noPunct&free_form=St.+Francis+Dam+Flood">St Francis Dam Flood</a>, image gallery at <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">USGS</a></li> <li><a rel="nofollow" class="external text" href="http://www.gendisasters.com/california/2443/los-angeles%2C-ca-area-flood-san-francisquito-dam-break%2C-mar-1928">1928 Newspaper accounts of st Francis dam</a></li> <li><a rel="nofollow" class="external text" href="http://www.scvhistory.com/scvhistory/annstansell_damvictims022214.htm">Complete List of St. Francis Dam Disaster Victims</a>, compiled by Ann C. Stansell, California State University–Northridge.</li> <li><a rel="nofollow" class="external text" href="http://digital2.library.ucla.edu/viewItem.do?ark=21198/zz002dcs24">Image of the remaining center portion of the St. Francis Dam visible after its collapse, San Francisquito Canyon, California, 1928</a>. <a href="/wiki/Los_Angeles_Times" title="Los Angeles Times">Los Angeles Times</a> Photographic Archive (Collection 1429). UCLA Library Special Collections, <a href="/wiki/Charles_E._Young_Research_Library" title="Charles E. Young Research Library">Charles E. Young Research Library</a>, <a href="/wiki/University_of_California,_Los_Angeles" title="University of California, Los Angeles">University of California, Los Angeles</a>.</li> <li><a rel="nofollow" class="external text" href="https://stfrancisdammemorial.org/">The St. Francis Dam National Memorial Foundation</a></li> <li><a rel="nofollow" class="external text" href="https://www.hmdb.org/results.asp?Search=Related&Related=146564">List of St. Francis Dam Historical Markers</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output 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tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 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.navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Santa_Clara_River" title="Template:Santa Clara River"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Santa_Clara_River" title="Template talk:Santa Clara River"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Santa_Clara_River" title="Special:EditPage/Template:Santa Clara River"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Santa_Clara_River_Watershed93" style="font-size:114%;margin:0 4em"><a href="/wiki/Santa_Clara_River_(California)" title="Santa Clara River (California)">Santa Clara River</a> Watershed</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Tributaries</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Castaic_Creek" title="Castaic Creek">Castaic Creek</a></li> <li><a href="/wiki/Piru_Creek" title="Piru Creek">Piru Creek</a></li> <li><a href="/wiki/San_Francisquito_Creek_(Santa_Clara_River_tributary)" title="San Francisquito Creek (Santa Clara River tributary)">San Francisquito Creek</a></li> <li><a href="/wiki/Sespe_Creek" title="Sespe Creek">Sespe Creek</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Communities</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Acton,_California" title="Acton, California">Acton</a></li> <li><a href="/wiki/Agua_Dulce,_California" title="Agua Dulce, California">Agua Dulce</a></li> <li><a href="/wiki/Bardsdale,_California" title="Bardsdale, California">Bardsdale</a></li> <li><a href="/wiki/Castaic,_California" title="Castaic, California">Castaic</a></li> <li><a href="/wiki/Castaic_Junction,_California" title="Castaic Junction, California">Castaic Junction</a></li> <li><a href="/wiki/El_Rio,_California" title="El Rio, California">El Rio</a></li> <li><a href="/wiki/Elizabeth_Lake,_California" title="Elizabeth Lake, California">Elizabeth Lake</a></li> <li><a href="/wiki/Fillmore,_California" title="Fillmore, California">Fillmore</a></li> <li><a href="/wiki/Green_Valley,_Los_Angeles_County,_California" title="Green Valley, Los Angeles County, California">Green Valley</a></li> <li><a href="/wiki/Lake_Hughes,_California" title="Lake Hughes, California">Lake Hughes</a></li> <li><a href="/wiki/Oxnard,_California" title="Oxnard, California">Oxnard</a></li> <li><a href="/wiki/Piru,_California" title="Piru, California">Piru</a></li> <li><a href="/wiki/Sand_Canyon,_Los_Angeles_County,_California" class="mw-redirect" title="Sand Canyon, Los Angeles County, California">Sand Canyon</a></li> <li><a href="/wiki/Santa_Clarita,_California" title="Santa Clarita, California">Santa Clarita</a></li> <li><a href="/wiki/Santa_Paula,_California" title="Santa Paula, California">Santa Paula</a></li> <li><a href="/wiki/Saticoy,_California" title="Saticoy, California">Saticoy</a></li> <li><a href="/wiki/Stevenson_Ranch,_California" title="Stevenson Ranch, California">Stevenson Ranch</a></li> <li><a href="/wiki/Val_Verde,_California" title="Val Verde, California">Val Verde</a></li> <li><a href="/wiki/Valencia,_California" title="Valencia, California">Valencia</a></li> <li><a href="/wiki/Ventura,_California" title="Ventura, California">Ventura</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Landmarks</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Angeles_National_Forest" title="Angeles National Forest">Angeles National Forest</a></li> <li><a href="/wiki/Bouquet_Reservoir" title="Bouquet Reservoir">Bouquet Reservoir</a></li> <li><a href="/wiki/California_State_Route_126" title="California State Route 126">California State Route 126</a></li> <li><a href="/wiki/Castaic_Lake" title="Castaic Lake">Castaic Lake</a></li> <li><a href="/wiki/Castaic_Lake_State_Recreation_Area" class="mw-redirect" title="Castaic Lake State Recreation Area">Castaic Lake State Recreation Area</a></li> <li><a href="/wiki/Dry_Canyon_Reservoir" title="Dry Canyon Reservoir">Dry Canyon Reservoir</a></li> <li><a href="/wiki/Elizabeth_Lake_(Los_Angeles_County,_California)" title="Elizabeth Lake (Los Angeles County, California)">Elizabeth Lake</a></li> <li><a href="/wiki/Hughes_Lake_(California)" title="Hughes Lake (California)">Hughes Lake</a></li> <li><a href="/wiki/Lake_Piru" title="Lake Piru">Lake Piru</a></li> <li><a href="/wiki/Los_Angeles_Aqueduct" title="Los Angeles Aqueduct">Los Angeles Aqueduct</a></li> <li><a href="/wiki/Los_Padres_National_Forest" title="Los Padres National Forest">Los Padres National Forest</a></li> <li><a href="/wiki/McGrath_State_Beach" title="McGrath State Beach">McGrath State Beach</a></li> <li><a href="/wiki/Mentryville,_California" title="Mentryville, California">Mentryville</a></li> <li><a href="/wiki/Mint_Canyon_Formation" title="Mint Canyon Formation">Mint Canyon Formation</a></li> <li><a href="/wiki/Munz_Lakes" title="Munz Lakes">Munz Lakes</a></li> <li><a href="/wiki/Oxnard_Plain" title="Oxnard Plain">Oxnard Plain</a></li> <li><a href="/wiki/Placerita_Canyon_State_Park" title="Placerita Canyon State Park">Placerita Canyon State Park</a></li> <li><a href="/wiki/Pyramid_Dam" title="Pyramid Dam">Pyramid Dam</a></li> <li><a href="/wiki/Pyramid_Lake_(Los_Angeles_County,_California)" title="Pyramid Lake (Los Angeles County, California)">Pyramid Lake</a></li> <li><a href="/wiki/Rancho_Camulos" title="Rancho Camulos">Rancho Camulos</a></li> <li><a href="/wiki/Rancho_El_Rio_de_Santa_Clara_o_la_Colonia" title="Rancho El Rio de Santa Clara o la Colonia">Rancho El Rio de Santa Clara o la Colonia</a></li> <li><a href="/wiki/Rancho_San_Francisco" title="Rancho San Francisco">Rancho San Francisco</a></li> <li><a href="/wiki/Rancho_Santa_Clara_del_Norte" title="Rancho Santa Clara del Norte">Rancho Santa Clara del Norte</a></li> <li><a href="/wiki/Rancho_Santa_Paula_y_Saticoy" title="Rancho Santa Paula y Saticoy">Rancho Santa Paula y Saticoy</a></li> <li><a href="/wiki/Rancho_Sespe" title="Rancho Sespe">Rancho Sespe</a></li> <li><a href="/wiki/Santa_Clara_River_Trail" title="Santa Clara River Trail">Santa Clara River Trail</a></li> <li><a href="/wiki/Santa_Clara_River_Valley" title="Santa Clara River Valley">Santa Clara River Valley</a></li> <li><a href="/wiki/Santa_Clarita_Valley" title="Santa Clarita Valley">Santa Clarita Valley</a></li> <li><a href="/wiki/San_Emigdio_Mountains" title="San Emigdio Mountains">San Emigdio Mountains</a></li> <li><a href="/wiki/San_Francisquito_Canyon" title="San Francisquito Canyon">San Francisquito Canyon</a></li> <li><a class="mw-selflink selflink">St. Francis Dam</a></li> <li><a href="/wiki/San_Gabriel_Mountains" title="San Gabriel Mountains">San Gabriel Mountains</a></li> <li><a href="/wiki/Santa_Susana_Mountains" title="Santa Susana Mountains">Santa Susana Mountains</a></li> <li><a href="/wiki/Saticoy_Oil_Field" title="Saticoy Oil Field">Saticoy Oil Field</a></li> <li><a href="/wiki/Sespe_Wilderness" title="Sespe Wilderness">Sespe Wilderness</a></li> <li><a href="/wiki/Sierra_Madre_Mountains_(California)" class="mw-redirect" title="Sierra Madre Mountains (California)">Sierra Madre Mountains</a></li> <li><a href="/wiki/Sierra_Pelona_Ridge" title="Sierra Pelona Ridge">Sierra Pelona Ridge</a></li> <li><a href="/wiki/Six_Flags_Magic_Mountain" title="Six Flags Magic Mountain">Six Flags Magic Mountain</a></li> <li><a href="/wiki/Soledad_Canyon" title="Soledad Canyon">Soledad Canyon</a></li> <li><a href="/wiki/Topatopa_Mountains" title="Topatopa Mountains">Topatopa Mountains</a></li> <li><a href="/wiki/Vasquez_Rocks" title="Vasquez Rocks">Vasquez Rocks</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="Dams_in_Los_Angeles_County,_California311" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3" style="background:#99CCFF;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231" /><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:LA_County_dams" title="Template:LA County dams"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:LA_County_dams" title="Template talk:LA County dams"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:LA_County_dams" title="Special:EditPage/Template:LA County dams"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Dams_in_Los_Angeles_County,_California311" style="font-size:114%;margin:0 4em">Dams in <a href="/wiki/Los_Angeles_County,_California" title="Los Angeles County, California">Los Angeles County, California</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/California_Department_of_Water_Resources" title="California Department of Water Resources">CA Department of Water Resources</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Castaic_Dam" title="Castaic Dam">Castaic</a></li> <li><a href="/wiki/Elderberry_Forebay_Dam" title="Elderberry Forebay Dam">Elderberry Forebay</a></li> <li><a href="/wiki/Pyramid_Dam" title="Pyramid Dam">Pyramid</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Sepulvedadam.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Sepulvedadam.jpg/130px-Sepulvedadam.jpg" decoding="async" width="130" height="98" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Sepulvedadam.jpg/195px-Sepulvedadam.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Sepulvedadam.jpg/260px-Sepulvedadam.jpg 2x" data-file-width="1280" data-file-height="960" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Los_Angeles_County_Department_of_Public_Works" title="Los Angeles County Department of Public Works">LA Department of Public Works</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Big_Dalton_Dam" title="Big Dalton Dam">Big Dalton</a></li> <li><a href="/wiki/Big_Tujunga_Dam" title="Big Tujunga Dam">Big Tujunga</a></li> <li><a href="/wiki/Cogswell_Dam" title="Cogswell Dam">Cogswell</a></li> <li><a href="/wiki/Devil%27s_Gate_Dam" class="mw-redirect" title="Devil's Gate Dam">Devil's Gate</a></li> <li><a href="/wiki/Eaton_Wash_Dam" class="mw-redirect" title="Eaton Wash Dam">Eaton Wash</a></li> <li><a href="/w/index.php?title=Live_Oak_Dam&action=edit&redlink=1" class="new" title="Live Oak Dam (page does not exist)">Live Oak</a></li> <li><a href="/wiki/Morris_Dam" title="Morris Dam">Morris</a></li> <li><a href="/wiki/Pacoima_Dam" title="Pacoima Dam">Pacoima</a></li> <li><a href="/wiki/Puddingstone_Dam" title="Puddingstone Dam">Puddingstone</a></li> <li><a href="/wiki/San_Dimas_Dam" title="San Dimas Dam">San Dimas</a></li> <li><a href="/wiki/San_Gabriel_Dam" title="San Gabriel Dam">San Gabriel</a></li> <li><a href="/wiki/Santa_Anita_Dam" title="Santa Anita Dam">Santa Anita</a></li> <li><a href="/w/index.php?title=Sawpit_Dam&action=edit&redlink=1" class="new" title="Sawpit Dam (page does not exist)">Sawpit</a> (disused)</li> <li><a href="/wiki/Sierra_Madre_Dam" title="Sierra Madre Dam">Sierra Madre</a></li> <li><a href="/w/index.php?title=Thompson_Creek_Dam&action=edit&redlink=1" class="new" title="Thompson Creek Dam (page does not exist)">Thompson Creek</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Los_Angeles_Department_of_Water_and_Power" title="Los Angeles Department of Water and Power">LA Department of Water and Power</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Baldwin_Hills_Dam_disaster" title="Baldwin Hills Dam disaster">Baldwin Hills</a> (failed)</li> <li><a href="/wiki/Bouquet_Reservoir" title="Bouquet Reservoir">Bouquet</a></li> <li><a href="/wiki/Chatsworth_Nature_Preserve" title="Chatsworth Nature Preserve">Chatsworth</a> (unsafe: emptied)</li> <li><a href="/wiki/Dry_Canyon_Reservoir" title="Dry Canyon Reservoir">Dry Canyon</a> (unsafe: emptied)</li> <li><a href="/wiki/Encino_Reservoir" title="Encino Reservoir">Encino</a></li> <li><a href="/w/index.php?title=Fairmont_Reservoir&action=edit&redlink=1" class="new" title="Fairmont Reservoir (page does not exist)">Fairmont</a></li> <li><a href="/w/index.php?title=Los_Angeles_Reservoir&action=edit&redlink=1" class="new" title="Los Angeles Reservoir (page does not exist)">Los Angeles</a></li> <li><a href="/wiki/Mulholland_Dam" title="Mulholland Dam">Mulholland</a></li> <li><a href="/wiki/Silver_Lake_Reservoir" title="Silver Lake Reservoir">Silver Lake</a></li> <li><a class="mw-selflink selflink">St. Francis</a> (failed)</li> <li><a href="/wiki/Stone_Canyon_Reservoir" title="Stone Canyon Reservoir">Stone Canyon</a></li> <li><a href="/wiki/Van_Norman_Dams" title="Van Norman Dams">Van Norman (aka San Fernando)</a> (failed)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/US_Army_Corps_of_Engineers" class="mw-redirect" title="US Army Corps of Engineers">US Army Corps of Engineers</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hansen_Dam" title="Hansen Dam">Hansen</a></li> <li><a href="/wiki/Santa_Fe_Dam" title="Santa Fe Dam">Santa Fe</a></li> <li><a href="/wiki/Sepulveda_Dam" title="Sepulveda Dam">Sepulveda</a></li> <li><a href="/wiki/Whittier_Narrows_Dam" title="Whittier Narrows Dam">Whittier Narrows</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Brown_Mountain_Dam&action=edit&redlink=1" class="new" title="Brown Mountain Dam (page does not exist)">Brown Mountain Dam</a> (disused)</li> <li><a href="/w/index.php?title=Las_Virgenes_Reservoir&action=edit&redlink=1" class="new" title="Las Virgenes Reservoir (page does not exist)">Las Virgenes</a></li> <li><a href="/wiki/Little_Rock_Dam" title="Little Rock Dam">Little Rock</a></li> <li><a href="/wiki/Rindge_Dam" title="Rindge Dam">Rindge</a> (disused)</li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="Floods_in_California24" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" 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flood of 1605">California flood of 1605</a></li> <li><a href="/wiki/1858_San_Diego_hurricane" title="1858 San Diego hurricane">1858 San Diego hurricane</a></li> <li><a href="/wiki/Great_Flood_of_1862" title="Great Flood of 1862">Great Flood of 1862</a></li> <li><a class="mw-selflink selflink">St. Francis Dam Disaster (1928)</a></li> <li><a href="/wiki/Crescenta_Valley_flood_(1933_and_1934)" title="Crescenta Valley flood (1933 and 1934)">Crescenta Valley flood (1933 and 1934)</a></li> <li><a href="/wiki/Los_Angeles_flood_of_1938" title="Los Angeles flood of 1938">Los Angeles flood of 1938</a></li> <li><a href="/wiki/1939_California_tropical_storm" title="1939 California tropical storm">1939 California tropical storm</a></li> <li><a href="/wiki/1964_Alaska_earthquake" title="1964 Alaska earthquake">Tsunami from 1964 Alaska earthquake</a></li> <li><a href="/wiki/Christmas_flood_of_1964" title="Christmas flood of 1964">Christmas flood of 1964</a></li> <li><a href="/wiki/Hurricane_Kathleen" title="Hurricane Kathleen">Hurricane Kathleen (1976)</a></li> <li><a href="/wiki/Hurricane_Doreen_(1977)" title="Hurricane Doreen (1977)">Hurricane Doreen (1977)</a></li> <li><a href="/wiki/1997_Merced_River_flood" title="1997 Merced River flood">1997 Merced River flood</a></li> <li><a href="/wiki/Los_Angeles_County_flood_of_2005" title="Los Angeles County flood of 2005">Los Angeles County flood of 2005</a></li> <li><a href="/wiki/Hurricane_Marie_(2014)" title="Hurricane Marie (2014)">Hurricane Marie (2014)</a></li> <li><a href="/wiki/2017_California_floods" title="2017 California floods">2017 California floods</a></li> <li><a href="/wiki/Oroville_Dam_crisis" title="Oroville Dam crisis">Oroville Dam crisis (2017)</a></li> <li><a href="/wiki/2022%E2%80%932023_California_floods" title="2022–2023 California floods">2022–2023 California floods</a></li> <li><a href="/wiki/Hurricane_Hilary#United_States" title="Hurricane Hilary">Hurricane Hilary (2023)</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox authority-control" aria-labelledby="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q381648#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata498" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q381648#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata498" style="font-size:114%;margin:0 4em"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q381648#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">International</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/315142397">VIAF</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Geographic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://structurae.net/structures/20001408">Structurae</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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1,\n}\narticle_whitelist = table#1 {\n}\nciteref_patterns = table#1 {\n}\n"},"cachereport":{"origin":"mw-web.codfw.main-76d4c66f66-jnzfs","timestamp":"20250302033044","ttl":2579371,"transientcontent":true}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"St. Francis Dam","url":"https:\/\/en.wikipedia.org\/wiki\/St._Francis_Dam","sameAs":"http:\/\/www.wikidata.org\/entity\/Q381648","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q381648","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2004-01-09T03:01:57Z","dateModified":"2025-01-27T21:51:19Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/4\/46\/St_Francis_Dam_crop.jpg","headline":"former dam in Los Angeles County, California, 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