Lower Snake River Dams Study

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class="c-single-header__heading-wrapper"> <div class="c-single-header__banner-image-wrapper"> <picture><source srcset="https://www.sei.org/wp-content/uploads/2024/07/180807-a-qv643-032-1800x770.webp?modtime=" media="(min-width:1025px)"><source srcset="https://www.sei.org/wp-content/uploads/2024/07/180807-a-qv643-032-1024x685.webp?modtime=" media="(min-width:550px)"><source srcset="https://www.sei.org/wp-content/uploads/2024/07/180807-a-qv643-032-550x883.webp?modtime=" media="(min-width:1px)"><img srcset="https://www.sei.org/wp-content/uploads/2024/07/180807-a-qv643-032-1800x770.webp?modtime=" alt="" class="c-single-header__banner-image" fetchpriority="high"></picture> </div> <div class="c-single-header__content-wrapper"> <div class="c-single-header__container o-container o-container--grid"> <div class="c-single-header__top-meta"> <small class="c-single-header__content-type">Project</small> </div> <div class="c-single-header__content"> <h1 class="c-single-header__heading"> Lower Snake River Dams Study </h1> </div> <aside class="c-single-header__aside c-single-header__aside--caption-only"> </aside> </div> </div> </div> <div class="c-single-header__banner-bar"> <div class="c-single-header__banner-bar-container o-container o-container--grid"> <div class="c-single-header__intro o-content-from-editor"> <p>SEI is studying the evaporation from the Lower Snake River reservoirs in the northwest United States, as authorities explore removing four dams.</p> </div> <div class="c-single-header__image-credit"><p><a href="https://www.nww.usace.army.mil/Media/Images/igphoto/2003288615/" target="_blank" class="is-external"><span>Photo: US Army Corps of Engineers</span><span class="u-no-wrap-icon"></span></a></p> </div> </div> </div> </header> <section class="c-single-header-meta c-single-header-meta--project"> <div class="c-single-header-meta__inner o-container"> <div class="c-single-header-meta__block c-single-header-meta__block--project_years"> <strong class="c-single-header-meta__block-heading">Active project</strong> <p class="c-single-header-meta__block-content">2024</p> </div> <div class="c-single-header-meta__block c-single-header-meta__block--contact"> <strong class="c-single-header-meta__block-heading">Project contact</strong> <p class="c-single-header-meta__block-content"><span class="c-single-header-meta__contact"><a href="https://www.sei.org/people/doug-chalmers/">Doug Chalmers</a> / <a href="/cdn-cgi/l/email-protection#3d1b1e0c0d0d061b1e0c0c0c061b1e0c0c0a061b1e0c0d0e061b1e0d090b061b1e0d0404061b1e0c0d09061b1e0d040a061b1e0c0d05061b1e0c0d04061b1e0c0d0c061b1e0c0c09061b1e0c0c08061b1e0d0b09061b1e0c0c08061b1e0c0d0c061b1e0c0d08061b1e0d090b061b1e0c0c0c061b1e0c0c09061b1e0c0d0e06">doug.chalmers@sei.org</a></span></p> </div> </div> </section> <nav class="c-tabs o-section js-content-menu"> <div class="c-tabs__container o-container js-horizontal-scrolling"> <button class="c-tabs__scrolling-button c-tabs__scrolling-button--left js-arrow js-arrow-left" aria-label="Scroll left"> <svg class="o-svg o-svg--chevron-right c-tabs__scrolling-arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#chevron-right" /></svg> </button> <div class="c-tabs__list js-content-menu__list js-horizontal-scrolling__scrollable"> <button class="c-tabs__tab o-button o-button--grey is-active js-content-menu__item" data-target="overview" id="tab-1" aria-label="Click to show the Overview section" aria-selected="true" > Overview </button> <button class="c-tabs__tab o-button o-button--grey js-content-menu__item" data-target="partner" id="tab-2" aria-label="Click to show the Partner section" aria-selected="false" > Partner </button> <button class="c-tabs__tab o-button o-button--grey js-content-menu__item" data-target="sei-team" id="tab-3" aria-label="Click to show the SEI team section" aria-selected="false" > SEI team </button> <button class="c-tabs__tab o-button o-button--grey js-content-menu__item" data-target="related-links" id="tab-4" aria-label="Click to show the Related links section" aria-selected="false" > Related links </button> </div> <button class="c-tabs__scrolling-button c-tabs__scrolling-button--right js-arrow js-arrow-right" aria-label="Scroll right"> <svg class="o-svg o-svg--chevron-right c-tabs__scrolling-arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#chevron-right" /></svg> </button> </div> </nav> <div class="c-tab-content is-visible js-content-menu__content" data-content="overview" id="tab-content-0" aria-labelledby="tab-1" > <section class="c-wysiwyg-block o-section js-toc-content" lang="en"> <div class="c-wysiwyg-block__container o-container"> <div class="c-wysiwyg-block__wrapper o-content-from-editor"> <p><a href="https://www.columbiariverkeeper.org/" target="_blank" class="is-external"><span>Columbia Riverkeeper</span><span class="u-no-wrap-icon"><svg class="o-svg o-svg--external-link "><use xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#external-link" /></svg></span></a> has requested the services of the SEI to study the Snake River, a tributary of the Columbia River located in the US states of Washington, Idaho, and Oregon. The four dams on the lower Snake River (Ice Harbor, Lower Monumental, Little Goose and Lower Granite) provide benefits for hydropower, irrigation and transportation, but significantly reduce the access of endangered salmon and steelhead to the mountainous cold-water habitat in the upper Snake River basin. Access to this cold-water habitat is critical to these species’ recovery. SEI鈥檚 task is to estimate the evaporation from the Lower Snake River reservoirs. Columbia Riverkeeper is interested in learning the evaporation under the historical climate as well as under future climate projections, to help provide background information regarding potential lower Snake River dam removal.</p> </div> </div> </section> </div> <div class="c-tab-content js-content-menu__content" data-content="partner" id="tab-content-1" aria-labelledby="tab-2" > <section class="c-link-list o-section"> <div class="c-link-list__container o-container"> <div class="c-link-list__list-wrapper"> <ul class="c-link-list__list"> <li class="c-link-list__item"> <a class="c-link-list__link" href="https://www.columbiariverkeeper.org/" title="Columbia Riverkeeper" target="_blank"> <span>Columbia Riverkeeper</span> <svg class="o-svg o-svg--arrow c-link-list__arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#arrow" /></svg> </a> </li> </ul> </div> </div> </section> </div> <div class="c-tab-content js-content-menu__content" data-content="sei-team" id="tab-content-2" aria-labelledby="tab-3" > <section class="c-card-block c-card-block--people-list c-card-block--full-width o-section c-card-block--layout-3_per_row js-full-width"> <div class="o-container"> <div class="c-card-block__header"> <h2 class="c-card-block__title"> Project team </h2> </div> <div class="c-card-block__card-outer"> <div class="c-card-block__cards"> <div class="c-person-card c-person-card--internal"> <picture><source srcset="https://www.sei.org/wp-content/uploads/2018/09/doug-chalmers-250x250.jpg?modtime=" media="(min-width:1px)"><img srcset="https://www.sei.org/wp-content/uploads/2018/09/doug-chalmers-250x250.jpg?modtime=" alt="" class="c-person-card__image" loading="lazy"></picture> <div class="c-person-card__content"> <a class="c-person-card__link" href="https://www.sei.org/people/doug-chalmers/"> Doug Chalmers </a> <p class="c-person-card__job-title"> Scientist </p> <p class="c-person-card__centre">SEI US</p> </div> </div> <div class="c-person-card c-person-card--internal"> <picture><source srcset="https://www.sei.org/wp-content/uploads/2017/12/sei-staff-brianjoyce-120x179.jpg?modtime=" media="(min-width:1px)"><img srcset="https://www.sei.org/wp-content/uploads/2017/12/sei-staff-brianjoyce-120x179.jpg?modtime=" alt="Profile picture of Brian Joyce" class="c-person-card__image" loading="lazy"></picture> <div class="c-person-card__content"> <a class="c-person-card__link" href="https://www.sei.org/people/brian-joyce/"> Brian Joyce </a> <p class="c-person-card__job-title"> Senior Scientist </p> <p class="c-person-card__centre">SEI US</p> </div> </div> </div> </div> </div> </section> </div> <div class="c-tab-content js-content-menu__content" data-content="related-links" id="tab-content-3" aria-labelledby="tab-4" > <section class="c-link-list o-section"> <div class="c-link-list__container o-container"> <div class="c-link-list__list-wrapper"> <ul class="c-link-list__list"> <li class="c-link-list__item"> <a class="c-link-list__link" href="https://www.columbiariverkeeper.org/campaigns/snake-river-dam-removal/" title="Columbia Riverkeeper: Snake River Dam Removal" target="_blank"> <span>Columbia Riverkeeper: Snake River Dam Removal</span> <svg class="o-svg o-svg--arrow c-link-list__arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#arrow" /></svg> </a> </li> <li class="c-link-list__item"> <a class="c-link-list__link" href="https://columbiasnakeriver.com/" title="Columbia Snake River Campaign" target="_blank"> <span>Columbia Snake River Campaign</span> <svg class="o-svg o-svg--arrow c-link-list__arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#arrow" /></svg> </a> </li> <li class="c-link-list__item"> <a class="c-link-list__link" href="https://www.salmonorcaproject.com/snakeriver" title="Salmon Orca Project: The Snake River crisis" target="_blank"> <span>Salmon Orca Project: The Snake River crisis</span> <svg class="o-svg o-svg--arrow c-link-list__arrow"><use class="o-svg__use " xlink:href="https://www.sei.org/wp-content/themes/sei/assets/img/symbol/svg/sprite.symbol.svg?v2.0#arrow" /></svg> </a> </li> </ul> </div> </div> </section> </div> <section class="c-meta o-section o-section--has-background"> <div class="c-meta__container o-container"> <div class="c-meta__container-inner"> <dl class="c-meta__inner"> <div class="c-meta__row c-meta__row--topics-and-subtopics"> <dt class="c-meta__label"> Topics and subtopics </dt> <dd class="c-meta__values"> <a class="c-meta__link" href="https://www.sei.org/topics/water/"><span class="c-meta__link-text">Water</span></a> <span class="c-meta__item-separator">:</span> <a class="c-meta__link" href="https://www.sei.org/topics/water-resources/?parent_topic=water"><span class="c-meta__link-text">Water resources</span></a>, <a class="c-meta__link" 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