Welcome to Washington Closure Hanford

Washington Closure Hanford manages the $2.9 billion River Corridor Closure Project for the U.S. Department of Energy’s Richland Operations Office.

The company is responsible for protecting the Columbia River by cleaning up 583 waste sites, demolishing 331 buildings, placing two plutonium production reactors and one nuclear facility in interim safe storage, and operating the Environmental Restoration Disposal Facility.


DOE's Largest Environmental Cleanup Closure Project