US Army Corps of Engineers
Northwestern Division

  • November

    CRSO: Introducing the affected environment

    Essential to the National Environmental Policy Act process and the comparison of the alternatives under consideration is the development of the Affected Environment and Environmental Consequences sections of the environmental impact statement.
  • CRSO: Operating dams to support fish passage

    The Corps and Reclamation operate Hungry Horse, Libby, Albeni Falls, Grand Coulee and Dworshak dams to store water to reduce flood damages downstream and deliver water for irrigation, among other purposes. However, storing water can interrupt the seasonal river flow patterns.
  • Defining the Environment under NEPA

    The National Environmental Policy Act requires federal agencies to evaluate each of the alternatives thoroughly to support comparisons about their implementation and their impacts on resources in natural and physical environments.
  • CRSO EIS Featured Project - Hungry Horse Dam

    The Columbia River System is large and complex. This educational feature introduces you to individual projects that play a role in supporting the region’s tribes, communities, industries and fish and wildlife species.
  • CRSO EIS Featured Project - Dworshak Dam

    The Columbia River System is large and complex. This educational feature introduces you to individual projects that play a role in supporting the region’s tribes, communities, industries and fish and wildlife species.
  • Citizen’s Guide to ESA Accomplishments

    For highlights of eight years of accomplishments to protect and conserve ESA-listed salmon and steelhead in the Columbia River Basin, read the 2016 Citizen’s Guide.
  • New laser at McNary Dam is the latest technology for deterring birds

    In an effort to discourage birds from snatching up juvenile salmon below McNary Dam, the U.S. Army Corps of Engineers Walla Walla District has bought a laser.
  • October

    CRSO: Introducing the range of alternatives

    This update provides an overview of the alternatives. All alternatives were designed to benefit ESA-listed fish species. The alternatives represent different ways to balance the multiple purposes of the system.
  • Omaha District partners with NRD in ground breaking levee restoration efforts

    The Papio-Missouri River Natural Resources District broke ground on levee improvements for the R-613 and R-616 levee systems at Haworth Park, in Belleville, Oct. 15.
  • Protecting cultural site, minimizing impacts

    When erosion threatened a National Register-eligible archaeological site on Idaho’s Pend Oreille River, a Seattle District, U.S. Army Corps of Engineers’ team went the distance to stabilize the bank and minimize construction impacts to adjacent wetland habitat.