The Hanford Site is a decommissioned nuclear production complex operated by the United States federal government on the Columbia River in Benton County in the U.S. state of Washington. It has also been known as Site W and the Hanford Nuclear Reservation.

Hanford was a small agricultural community in Benton County, Washington, United States. It and White Bluffs were depopulated in 1943 in order to make room for the nuclear production facility known as the Hanford Site. The town was located in what is now the "100F" sector of the site.

Learn about Hanford and the Tri-Cities role in the Manhattan Project. Visit Hanford (Tri-Cities) and explore all the different ways you can learn about the Manhattan Project. Learn how the Hanford Site produced plutonium for the Manhattan Project.

Take a self-guided virtual tour of cleanup projects throughout the Hanford Site. (Discover Hanford) Attend an upcoming public meeting or provide feedback during an open comment period. (Learn more)

The story of the Manhattan Project at Hanford encompasses historic facilities and educational centers with the National Park Service, the US Department of Energy and the communities where Hanford workers and their families lived, which are all part of the Tri-Cities region today.

Sep 24, 2024 · At the roughly 600-square mile (965 sq km) Hanford Site, the Army Corps of Engineers and the DuPont Corporation built massive plutonium production facilities along the Columbia River in Washington State and forever transformed the site …

Jan 7, 2025 · The Hanford site, a 580-square-mile section of semi-arid desert in southeast Washington, was established in 1943 as part of the Manhattan Project to produce plutonium for national defense.

Oct 17, 2024 · Many in the Pacific Northwest region are aware the site exists; but what really happens in this “secret” place known as Hanford? In response to these questions and concerns, the Department of Energy created The Hanford Story, …

Jan 20, 2025 · Nowhere in the DOE Complex is cleanup more challenging than at the Hanford Site in southeastern Washington. Hanford made more than 20 million pieces of uranium metal …

Dec 23, 2024 · Hanford Site, large U.S. nuclear site established during World War II for the production of plutonium, some of which was used in the first atomic bomb. It is located in south-central Washington, northwest of Richland, and was originally operated by the U.S. Army Corps of Engineers as a unit of the Manhattan Project and was later administered by ...