Hanford Places

Black and white photo of a small square cement building along a waterway. Black and white photo of a small square cement building along a waterway.

Left image
Allard Pumphouse along the Columbia River.
Credit: HANFORD HISTORY PROJECT

Right image
The Allard Pumphouse is on the Hanford Site today.
Credit: NPS/BURGHART

 
The Hanford Engineer Works produced plutonium for the Manhattan Project at a roughly 600-square-mile (1554-square-km) site along the Columbia River in Washington state. The Hanford Site was selected because of an abundant supply of cold Columbia River water needed to cool nuclear reactors, ample available hydroelectric power, mild climate, excellent transportation facilities, and distance from major population centers. Workers at the Hanford Site constructed and operated the world’s first nuclear production reactors that produced the plutonium used in the Trinity Test and in the atomic bomb dropped on Nagasaki, Japan, on August 9, 1945. Explore all the places in the Tri-Cities Region related to the Manhattan Project through six common themes that weave the different places within the region together.
 
 Several people gathered in front of a large porch.
Displacement

Learn about the people who used to live and subsist off the land that became the Hanford Site.

Several people dancing indoors.
Secret Cities & Communities

Immerse yourself in the community and culture of the Tri-Cities during the Manhattan Project.

A uniformed man walking toward a Jeep.
Behind the Fence

Peek behind the fence to explore plutonium production facilities and remnants of farm life.

An industrial facility with a water tower and smokestack.
Breaking Scientific Boundaries

Delve into the groundbreaking science of the Hanford Site and its connections to today.

Four people stand in a field.
Untold Stories

Discover the little-known stories of the Manhattan Project at Hanford.

Four people stand in a field.
Legacies

Discover the little-known stories of the Manhattan Project at Hanford.

 

 

Last updated: May 2, 2023

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Contact Info

Mailing Address:

Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
P.O. Box 25287

Denver, CO 80225-0287

Phone:

Hanford: 509.376.1647
Los Alamos: 505.661.6277
Oak Ridge: 865.482.1942

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