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href="https://fr.wikipedia.org/wiki/Raccoon_(rivi%C3%A8re)" title="Raccoon (rivière) – French" lang="fr" hreflang="fr" data-title="Raccoon (rivière)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D9%86%D9%87%D8%B1_%D8%A7%D9%84%D8%B1%D8%A7%D9%83%D9%88%D9%86" title="نهر الراكون – Egyptian Arabic" lang="arz" hreflang="arz" data-title="نهر الراكون" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B0%D0%BA%D0%BA%D1%83%D0%BD_(%D1%80%D0%B5%D0%BA%D0%B0)" title="Раккун (река) – Russian" lang="ru" hreflang="ru" data-title="Раккун (река)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q3415981#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Raccoon_River" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Raccoon_River" rel="discussion" title="Discuss improvements to 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id="mw-indicator-coordinates" class="mw-indicator"><div class="mw-parser-output"><span id="coordinates"><a href="/wiki/Geographic_coordinate_system" title="Geographic coordinate system">Coordinates</a>: <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=Raccoon_River&params=41_34_46_N_93_36_44_W_type:river"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">41°34′46″N</span> <span class="longitude">93°36′44″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">41.57944°N 93.61222°W</span><span style="display:none"> / <span class="geo">41.57944; -93.61222</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">Tributary of the Des Moines River in central Iowa in the United States</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Raccoon_Creek_(disambiguation)" class="mw-redirect mw-disambig" title="Raccoon Creek (disambiguation)">Raccoon Creek (disambiguation)</a></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"><tbody><tr><th colspan="2" class="infobox-above" style="background-color: #CEDEFF;color: #202122;">Raccoon River</th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:Raccoon_River.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/34/Raccoon_River.jpg/250px-Raccoon_River.jpg" decoding="async" width="250" height="187" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/34/Raccoon_River.jpg/375px-Raccoon_River.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/34/Raccoon_River.jpg/500px-Raccoon_River.jpg 2x" data-file-width="688" data-file-height="515" /></a></span><div class="infobox-caption">The Raccoon River at <a href="/wiki/Van_Meter,_Iowa" title="Van Meter, Iowa">Van Meter</a></div></td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Raccoonriveriowamap.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Raccoonriveriowamap.png/220px-Raccoonriveriowamap.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Raccoonriveriowamap.png/330px-Raccoonriveriowamap.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Raccoonriveriowamap.png/440px-Raccoonriveriowamap.png 2x" data-file-width="500" data-file-height="500" /></a></span><div class="infobox-caption">Map of the Raccoon River watershed</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #CEDEFF;color: #202122;">Location</th></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label">Country</th><td class="infobox-data"><a href="/wiki/US" class="mw-redirect" title="US">US</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label">State</th><td class="infobox-data"><a href="/wiki/Iowa" title="Iowa">Iowa</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label">District</th><td class="infobox-data"><a href="/wiki/Polk_County,_Iowa" title="Polk County, Iowa">Polk County, Iowa</a>, <a href="/wiki/Dallas_County,_Iowa" title="Dallas County, Iowa">Dallas County, Iowa</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #CEDEFF;color: #202122;">Physical characteristics</th></tr><tr style="display:none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label">Source</th><td class="infobox-data"> </td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • coordinates</span></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=Raccoon_River&params=41_32_38_N_93_58_00_W_"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">41°32′38″N</span> <span class="longitude">93°58′00″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">41.54389°N 93.96667°W</span><span style="display:none"> / <span class="geo">41.54389; -93.96667</span></span></span></a></span></span></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • elevation</span></th><td class="infobox-data">850 ft (260 m)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/River_mouth" title="River mouth">Mouth</a></th><td class="infobox-data"><a href="/wiki/Des_Moines_River" title="Des Moines River">Des Moines River</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><div style="display:inline;font-weight:normal"> • location</div></th><td class="infobox-data"><a href="/wiki/Des_Moines,_Iowa" title="Des Moines, Iowa">Des Moines, Iowa</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><div style="display:inline;font-weight:normal"> • coordinates</div></th><td class="infobox-data"><span class="geo-inline"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Raccoon_River&params=41_34_46_N_93_36_44_W_type:river"><span class="geo-default"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">41°34′46″N</span> <span class="longitude">93°36′44″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">41.57944°N 93.61222°W</span><span style="display:none"> / <span class="geo">41.57944; -93.61222</span></span></span></a></span></span></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><div style="display:inline;font-weight:normal"> • elevation</div></th><td class="infobox-data">784 ft (239 m)<sup id="cite_ref-gnis_2-0" class="reference"><a href="#cite_note-gnis-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display:none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label">Discharge</th><td class="infobox-data"> </td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • location</span></th><td class="infobox-data">Fleur Drive, <a href="/wiki/Des_Moines,_Iowa" title="Des Moines, Iowa">Des Moines, Iowa</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • average</span></th><td class="infobox-data">2,721 cu/ft. per sec.<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></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #CEDEFF;color: #202122;">Basin features</th></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label">Tributaries</th><td class="infobox-data"> </td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • left</span></th><td class="infobox-data"><a href="/wiki/South_Raccoon_River" class="mw-redirect" title="South Raccoon River">South Raccoon River</a></td></tr><tr style="padding: 0 0.6em 0.2em 0.6em;line-height: 1.2em;"><th scope="row" class="infobox-label"><span style="font-weight:normal"> • right</span></th><td class="infobox-data"><a href="/wiki/North_Raccoon_River" class="mw-redirect" title="North Raccoon River">North Raccoon River</a></td></tr></tbody></table> <p>The <b>Raccoon River</b> is a 30.8-mile-long (49.6 km)<sup id="cite_ref-NHD_4-0" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Tributary" title="Tributary">tributary</a> of the <a href="/wiki/Des_Moines_River" title="Des Moines River">Des Moines River</a> in central <a href="/wiki/Iowa" title="Iowa">Iowa</a> in the <a href="/wiki/United_States" title="United States">United States</a>. As measured using the longest of its three forks, its length increases to 226 miles (364 km).<sup id="cite_ref-NHD_4-1" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Via the Des Moines River, it is part of the <a href="/wiki/Drainage_basin" title="Drainage basin">watershed</a> of the <a href="/wiki/Mississippi_River" title="Mississippi River">Mississippi River</a>. The river runs through an intensely cultivated area of croplands and livestock farming, receiving <a href="/wiki/Tile_drainage" title="Tile drainage">Tile drainage</a> from slow-draining rich natural bottomland. </p><p>The <a href="/wiki/Des_Moines_metropolitan_area" title="Des Moines metropolitan area">Des Moines metropolitan area</a> has been obtaining its drinking water from the Raccoon River just before it empties into the <a href="/wiki/Des_Moines_River" title="Des Moines River">Des Moines River</a> through water utilities since the 19th century. During the <a href="/wiki/Great_Flood_of_1993" title="Great Flood of 1993">Great Flood of 1993</a>, the Raccoon River flooded the <a href="/wiki/Water_purification" title="Water purification">water treatment</a> facility of Des Moines, shutting off the city's supply of drinking water. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Raccoon_River&action=edit&section=1" title="Edit section: History"><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:Lewis_and_Clark_Racoon_River.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/Lewis_and_Clark_Racoon_River.jpg/220px-Lewis_and_Clark_Racoon_River.jpg" decoding="async" width="220" height="156" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/Lewis_and_Clark_Racoon_River.jpg/330px-Lewis_and_Clark_Racoon_River.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/40/Lewis_and_Clark_Racoon_River.jpg/440px-Lewis_and_Clark_Racoon_River.jpg 2x" data-file-width="1535" data-file-height="1086" /></a><figcaption>Excerpt of the Racoon River on the Map of Lewis and Clark's Track, Across the Western Portion of North America, 1814</figcaption></figure> <p>The Racoon River was first documented on the 1814 map by Lewis and Clark, though the USGS references the name to a later map from 1843 named <i>Hydrological Basin of the Upper Mississippi River</i> based on field measurements by <a href="/wiki/Joseph_N._Nicollet" class="mw-redirect" title="Joseph N. Nicollet">Joseph N. Nicollet</a> during his Midwestern expeditions in the 1830s.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Course">Course</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Raccoon_River&action=edit&section=2" title="Edit section: Course"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Raccoon River is a 30.8-mile-long (49.6 km)<sup id="cite_ref-NHD_4-2" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Tributary" title="Tributary">tributary</a> of the <a href="/wiki/Des_Moines_River" title="Des Moines River">Des Moines River</a> in central <a href="/wiki/Iowa" title="Iowa">Iowa</a> in the <a href="/wiki/United_States" title="United States">United States</a>. It flows for much of its length as three streams and when measured using the longest of its three forks, its length increases to 226 miles (364 km).<sup id="cite_ref-NHD_4-3" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The river runs through an intensely cultivated area of croplands mostly of corn and soy and livestock farming, where slow-draining rich natural bottomlands have been <a href="/wiki/Tile_drainage" title="Tile drainage">tiled</a> to drain them for agricultural cultivation.<sup id="cite_ref-seattle_6-0" class="reference"><a href="#cite_note-seattle-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <ul><li>The North Raccoon River is, by far, the longest of the three, at 196 miles (315 km).<sup id="cite_ref-NHD_4-4" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> It rises north of <a href="/wiki/Marathon,_Iowa" title="Marathon, Iowa">Marathon</a> in northeastern <a href="/wiki/Buena_Vista_County,_Iowa" title="Buena Vista County, Iowa">Buena Vista County</a> and initially flows southwardly into <a href="/wiki/Sac_County,_Iowa" title="Sac County, Iowa">Sac County</a>, where it turns southeastward for the remainder of its course through <a href="/wiki/Calhoun_County,_Iowa" title="Calhoun County, Iowa">Calhoun</a>, <a href="/wiki/Carroll_County,_Iowa" title="Carroll County, Iowa">Carroll</a>, <a href="/wiki/Greene_County,_Iowa" title="Greene County, Iowa">Greene</a> and <a href="/wiki/Dallas_County,_Iowa" title="Dallas County, Iowa">Dallas</a> counties. It passes the towns of <a href="/wiki/Sac_City,_Iowa" title="Sac City, Iowa">Sac City</a>, <a href="/wiki/Jefferson,_Iowa" title="Jefferson, Iowa">Jefferson</a>, <a href="/wiki/Perry,_Iowa" title="Perry, Iowa">Perry</a> and <a href="/wiki/Adel,_Iowa" title="Adel, Iowa">Adel</a>. The Adel Island dam in Adel is the only dam along its course.<sup id="cite_ref-DNRmap_7-0" class="reference"><a href="#cite_note-DNRmap-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li> <li>The Middle Raccoon River, 92 miles (148 km) long,<sup id="cite_ref-NHD_4-5" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> rises in northwestern Carroll County and flows generally southeastwardly through Guthrie and Dallas counties, past <a href="/wiki/Carroll,_Iowa" title="Carroll, Iowa">Carroll</a>, <a href="/wiki/Coon_Rapids,_Iowa" title="Coon Rapids, Iowa">Coon Rapids</a>, <a href="/wiki/Springbrook_State_Park" title="Springbrook State Park">Springbrook State Park</a>, <a href="/wiki/Panora,_Iowa" title="Panora, Iowa">Panora</a>, <a href="/wiki/Linden,_Iowa" title="Linden, Iowa">Linden</a>, and <a href="/wiki/Redfield,_Iowa" title="Redfield, Iowa">Redfield</a>. The three dams located along its course are the <a href="/wiki/Lake_Panorama" class="mw-redirect" title="Lake Panorama">Lake Panorama</a> dam and the Lennon Mill dam at Panora, and the Redfield dam at Redfield. Even though the Lake Panorama dam, completed in 1970, was built for recreational purposes only, it has provided some additional benefits by controlling flooding along the Middle Raccoon River. The Middle Raccoon River flows into the South Raccoon River about 1 mile (1.6 km) south of Redfield.<sup id="cite_ref-DNRmap_7-1" class="reference"><a href="#cite_note-DNRmap-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li> <li>The South Raccoon River, about 72 miles (116 km) long,<sup id="cite_ref-NHD_4-6" class="reference"><a href="#cite_note-NHD-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> rises in northeastern <a href="/wiki/Audubon_County,_Iowa" title="Audubon County, Iowa">Audubon County</a> and flows generally southeastwardly through <a href="/wiki/Guthrie_County,_Iowa" title="Guthrie County, Iowa">Guthrie</a> and Dallas counties, past the town of <a href="/wiki/Guthrie_Center,_Iowa" title="Guthrie Center, Iowa">Guthrie Center</a>. South of Redfield, after the Middle Raccoon River flows into the South Raccoon River, a <a href="/wiki/Stream_gauge" title="Stream gauge">flow gauge</a> operated jointly by the <a href="/wiki/United_States_Army_Corps_of_Engineers" title="United States Army Corps of Engineers">United States Army Corps of Engineers</a> (Rock Island District), the <a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">United States Geological Survey</a> (Iowa District), and the <a href="/wiki/Iowa_Department_of_Transportation" title="Iowa Department of Transportation">Iowa Department of Transportation</a> provides data about potential flooding threats.<sup id="cite_ref-DNRmap_7-2" class="reference"><a href="#cite_note-DNRmap-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-RedfieldGage_8-0" class="reference"><a href="#cite_note-RedfieldGage-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></li></ul> <p>The north and south forks join in Dallas County just west of <a href="/wiki/Van_Meter,_Iowa" title="Van Meter, Iowa">Van Meter</a>, and the Raccoon River flows generally eastward into <a href="/wiki/Polk_County,_Iowa" title="Polk County, Iowa">Polk County</a>, past <a href="/wiki/Walnut_Woods_State_Park" title="Walnut Woods State Park">Walnut Woods State Park</a> and <a href="/wiki/West_Des_Moines,_Iowa" title="West Des Moines, Iowa">West Des Moines</a>. It joins the <a href="/wiki/Des_Moines_River" title="Des Moines River">Des Moines River</a> just south of downtown <a href="/wiki/Des_Moines" class="mw-redirect" title="Des Moines">Des Moines</a> and is part of the <a href="/wiki/Drainage_basin" title="Drainage basin">watershed</a> of the <a href="/wiki/Mississippi_River" title="Mississippi River">Mississippi River</a>. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Raccoon_River_Des_Moines.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Raccoon_River_Des_Moines.jpg/220px-Raccoon_River_Des_Moines.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Raccoon_River_Des_Moines.jpg/330px-Raccoon_River_Des_Moines.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/13/Raccoon_River_Des_Moines.jpg/440px-Raccoon_River_Des_Moines.jpg 2x" data-file-width="2856" data-file-height="2142" /></a><figcaption>Raccoon River viewed upstream from its mouth in Des Moines. <a href="/wiki/Principal_Park" title="Principal Park">Principal Park</a> is at right.</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="Drinking_water_use">Drinking water use</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Raccoon_River&action=edit&section=3" title="Edit section: Drinking water use"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Both the Raccoon and Des Moines rivers have been providing <a href="/wiki/Drinking_water" title="Drinking water">drinking water</a> for the <a href="/wiki/Des_Moines_metropolitan_area" title="Des Moines metropolitan area">Des Moines metropolitan area</a> through water utilities since the 19th century. During the <a href="/wiki/Great_Flood_of_1993" title="Great Flood of 1993">Great Flood of 1993</a>, the Raccoon River flooded the <a href="/wiki/Water_purification" title="Water purification">water treatment</a> facility of Des Moines, shutting off the city's drinking water supply.<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 2017)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading3"><h3 id="Agricultural_pollution">Agricultural pollution</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Raccoon_River&action=edit&section=4" title="Edit section: Agricultural pollution"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Spring thaws, as in the spring of 2013, and rainy spells after drought wash <a href="/wiki/Nitrate" title="Nitrate">nitrate</a> from fertilizer into the river. On November 20, 2014, nitrates spiked at 13.7 parts per million (ppm), making the water unsafe for pregnant women and infants. (The US <a href="/wiki/Environmental_Protection_Agency" class="mw-redirect" title="Environmental Protection Agency">Environmental Protection Agency</a> requires officials to inform the public about safety risks at 10 ppm.) At the time, these were the highest readings in the nation.<sup id="cite_ref-seattle_6-1" class="reference"><a href="#cite_note-seattle-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <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=Raccoon_River&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_Iowa_rivers" class="mw-redirect" title="List of Iowa rivers">List of Iowa rivers</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=Raccoon_River&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <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"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><i>Waukee, IA,</i> 7.5 Minute Topographic Quadrangle, USGS, 1965 (1977 rev.)</span> </li> <li id="cite_note-gnis-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-gnis_2-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/460494">U.S. Geological Survey Geographic Names Information System: Raccoon River</a></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"><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="https://waterdata.usgs.gov/ia/nwis/uv/?site_no=05484900&PARAmeter_cd=00065,00060">"USGS Current Conditions for USGS 05484900 Raccoon River at Fleur Drive at des Moines, IA"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=USGS+Current+Conditions+for+USGS+05484900+Raccoon+River+at+Fleur+Drive+at+des+Moines%2C+IA&rft_id=https%3A%2F%2Fwaterdata.usgs.gov%2Fia%2Fnwis%2Fuv%2F%3Fsite_no%3D05484900%26PARAmeter_cd%3D00065%2C00060&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARaccoon+River" class="Z3988"></span></span> </li> <li id="cite_note-NHD-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-NHD_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NHD_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-NHD_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-NHD_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-NHD_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-NHD_4-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-NHD_4-6"><sup><i><b>g</b></i></sup></a></span> <span class="reference-text">U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. <a rel="nofollow" class="external text" href="https://viewer.nationalmap.gov/viewer/">The National Map</a>, accessed May 26, 2011</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="CITEREFNicolletFrémont1843" class="citation web cs1">Nicollet, Joseph Nicholas; Frémont, John Charles (December 1843). <a rel="nofollow" class="external text" href="https://www.loc.gov/item/78692260/">"Hydrographical basin of the upper Mississippi River from astronomical and barometrical observations, surveys, and information"</a>. Washington: by order of the U.S. Senate. p. 1.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Hydrographical+basin+of+the+upper+Mississippi+River+from+astronomical+and+barometrical+observations%2C+surveys%2C+and+information.&rft.place=Washington&rft.pages=1&rft.pub=by+order+of+the+U.S.+Senate&rft.date=1843-12&rft.aulast=Nicollet&rft.aufirst=Joseph+Nicholas&rft.au=Fr%C3%A9mont%2C+John+Charles&rft_id=https%3A%2F%2Fwww.loc.gov%2Fitem%2F78692260%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARaccoon+River" class="Z3988"></span></span> </li> <li id="cite_note-seattle-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-seattle_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-seattle_6-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.seattlepi.com/news/us/article/Des-Moines-struggling-with-nitrates-in-water-5909331.php">David Pitt (AP) "Des Moines struggling with nitrates in water "</a>: accessed 21 November 2013.</span> </li> <li id="cite_note-DNRmap-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-DNRmap_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-DNRmap_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-DNRmap_7-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www.iowadnr.gov/portals/idnr/uploads/riverprograms/map_raccoon%20north%20south%20and%20middle.pdf?amp;tabid=868">http://www.iowadnr.gov/portals/idnr/uploads/riverprograms/map_raccoon%20north%20south%20and%20middle.pdf?amp;tabid=868</a> <i>Expedition and Fishing Guide</i> IA Department of Natural Resources (DNR) website retrieved April 28, 2013</span> </li> <li id="cite_note-RedfieldGage-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-RedfieldGage_8-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="http://www2.mvr.usace.army.mil/WaterControl/stationinfo2.cfm?sid=REDI4&fid=REDI4&dt=S">http://www2.mvr.usace.army.mil/WaterControl/stationinfo2.cfm?sid=REDI4&fid=REDI4&dt=S</a> <i>South Raccoon River gage at Redfield</i> Rivergages website retrieved February 19, 2010</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Sources">Sources</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Raccoon_River&action=edit&section=7" title="Edit section: Sources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20050509094516/http://bartleby.com/69/66/R00066.html">Columbia Gazetteer of North America entry</a></li> <li><a href="/wiki/DeLorme" title="DeLorme">DeLorme</a> (1998). <i>Iowa Atlas & Gazetteer</i>. Yarmouth, Maine: DeLorme. <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/0-89933-214-5" title="Special:BookSources/0-89933-214-5">0-89933-214-5</a>.</li> <li>GNIS entries for <a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/460494">U.S. Geological Survey Geographic Names Information System: Raccoon River</a>, <a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/459048">U.S. Geological Survey Geographic Names Information System: Middle Raccoon River</a>, <a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/459620">U.S. Geological Survey Geographic Names Information System: North Raccoon River</a>, <a rel="nofollow" class="external text" href="https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/461799">U.S. Geological Survey Geographic Names Information System: South Raccoon River</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=Raccoon_River&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.iowadnr.gov/portals/idnr/uploads/riverprograms/map_raccoon%20north%20south%20and%20middle.pdf?amp;tabid=868">Map of Raccoon River basin</a> - Iowa Department of Natural Resources (DNR) website</li> <li><a rel="nofollow" class="external text" href="http://www2.mvr.usace.army.mil/WaterControl/stationinfo2.cfm?sid=REDI4&fid=REDI4&dt=S">South Raccoon River gage near Redfield</a> - US Army Corps of Engineers website</li> <li><a rel="nofollow" class="external text" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=dmx&gage=proi4&view=1,1,1,1,1,1,1,1">North Raccoon River at Perry</a> - National Oceanic Atmospheric Administration (NOAA) website</li> <li><a rel="nofollow" class="external text" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=dmx&gage=pani4&view=1,1,1,1,1,1,1,1">Middle Raccoon River at Panora</a> - NOAA website</li> <li><a rel="nofollow" class="external text" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=dmx&gage=redi4&view=1,1,1,1,1,1,1,1">South Raccoon River at Redfield</a> - NOAA website</li> <li><a rel="nofollow" class="external text" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=dmx&gage=vnmi4&view=1,1,1,1,1,1,1,1">Raccoon River at Van Meter</a> - NOAA website</li> <li><a rel="nofollow" class="external text" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=dmx&gage=demi4&view=1,1,1,1,1,1,1,1">Raccoon River at Des Moines Fleur Drive</a> - NOAA website</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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