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.
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.
In cooperation with local sponsors (such as counties and dike districts), the Seattle District plans, designs and builds flood risk management, navigation, water supply and ecosystem restoration projects. Through collaboration with our partners, the Corps provides comprehensive, innovative, sustainable solutions to water resources problems.