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324 Building

The 324 Building, located in Hanford’s 300 Area, supported research on highly radioactive materials from 1966 to 1996. The Department
of Energy and contractor Central Plateau Cleanup Company are currently preparing to remove highly contaminated soil under the building,
to allow for eventual demolition of the facility Photo circa 2015.


Located in the 300 Area, the 324 Building, operated from 1966 to 1996 and supported research on highly radioactive materials. Workers postponed demolition operations in 2010 after they discovered significant contamination under a portion of the building, which likely came from a previous spill of highly radioactive waste within the building. Due to the building’s close proximity to the Columbia River and the City of Richland, removing that contamination and demolishing the building is a top priority for the Department of Energy.

For more information, please see the 324 Building Disposition Project Fact Sheet.




Worker safety remains a top priority for this project.


Workers are cleaning out contaminated rooms called “hot cells” to install remotely operated equipment.


Contamination is estimated to extend 6 to 8 feet below the B Cell floor. Radiation levels are so high that remotely operated tools must be used.


Workers constructed a mock-up to replicate features inside the 324 Building.


Workers safely remove waste from the airlock, an area adjacent to B Cell.


Workers installed and tested a saw at the mock-up, which will soon be installed in B Cell to cut through the concrete floor.


Crews test and train on remotely operated equipment at the 324 Building mock-up.


This conceptual illustration shows the remotely operated excavator and loadout mechanism that will be used to remove contaminated soil from under the 324 Building.

Last Updated 12/07/2022 11:18 AM