US Army Corps of Engineers
Seattle District

FACT SHEET - Seattle District

Published Dec. 3, 2018


Seattle District Vision – Excelling in a Dynamic Environment: Mission First, People Always, Team of Teams 

Seattle District Mission – We Provide engineering expertise and manage water resources to deliver quality solutions that protect and serve the Pacific Northwest and the Nation

About Seattle District

Seattle District provides military and civil public works services as well as support for other agencies. The district also plays a key role in environmental protection and improvement—from protecting wetlands to ecological restoration and cleaning up hazardous and toxic waste pollution.

Civil Works

Seattle District’s civil works boundaries encompass 99,000 square miles and contain 4,700 miles of shoreline. The boundaries include the Columbia River system upstream of the mouth of the Yakima River, much of eastern Washington, Northern Idaho and western Montana to the Continental Divide. Seattle District’s regulatory jurisdiction covers the entire state of Washington.

Seattle District oversees more than 10,000 acres of public land and water. Seattle District operates five dams: Libby, Albeni Falls, Chief Joseph, Hiram M. Chittenden Locks, Howard Hanson and Mud Mountain dams. Our public lands, including the Chittenden Locks in Seattle and campgrounds on Lake Pend Oreille in Idaho, host more than 2 million visitors a year.

The district provides assistance in flood fighting, rehabilitation of flood control works damaged or destroyed by floods, and advance measures prior to floods. The district has responded to earthquakes, bombings, hurricanes and other emergencies. Also, the district, upon request, provides both technical advice and direct assistance to the Federal Emergency Management Agency under the National Response Framework.

Military and Interagency Missions

Seattle District’s military mission includes designing and building projects for the Army, Air Force and Army Reserves. Installations served include Fairchild, Mountain Home and Malmstrom Air Force Bases, Joint Base Lewis-McChord, Yakima Training Center and the Umatilla Chemical Depot. The Corps provides real estate services for the Army and Air Force, including recruiting facilities. The district also provides technical services to other armed forces upon request.

Seattle District cleans up current and formerly used military sites and areas managed by other federal agencies. Seattle District has worked successfully with the Army, Navy and Air Force to clean up contamination at their facilities. In addition, the district supports the Environmental Protection Agency with a number of cleanups around the Northwest.

The District conducts work for other federal, state, local and tribal agencies, similar to military or civil works projects. Facilities design and construction and environmental cleanup work are common projects.

Seattle District is a Corps-wide Technical Center of Expertise for Preservation of Historic Structures and Buildings. The district provides the Army and other agencies with planning, design and construction services to preserve the nation’s historic structures and buildings.