The process of designating a place a historical landmark can be an arduous task, methodical and long, but well worth it if the powers that be are truly interested in what the locals have to say, and the willingness to follow through on what is proposed.

B Reactor Hanford


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Go here if you would like to be on the webinar introduction to the National Park Service Manhattan Project presentation, where exhibits, programming and media will be discussed during the preliminary stages of the process. The webinar is Tuesday, April 13, 2021 at 3:30 p.m.

Go here if you can't make the webinar but would like to view the introductory presentation as it will be posted once it is complete.

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The Hanford Engineer Works was built to create large quantities of plutonium over roughly 600-square-miles at a site along the Columbia River. More than 51,000 workers at Hanford constructed and operated a massive industrial complex to fabricate, test, and irradiate uranium fuel and chemically separate out plutonium.

The Hanford landscape is also representative of one of the first acts of the Manhattan Project, the commandeering of private property and eviction of homeowners and Native American tribes to clear the way for the top-secret work.

Science in HD

At Hanford the park includes:

  • B-Reactor National Historic Landmark, which produced the material for the Trinity test and plutonium bomb
  • Hanford High School in the Town of Hanford and Hanford Construction Camp Historic District
  • Bruggemann's Agricultural Warehouse Complex
  • White Bluffs Bank and Hanford Irrigation District Pump House, which together provide a glimpse into the history of the Hanford area before the arrival of the Manhattan Project

The T-Plant, a chemical separations canyon, will not be in the park initially, but visitors will learn about its vital role at other locations in the park.

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