Oak Ridge Today

Crews prepare to demolish Graphite Reactor support facilities

Posted at
By Leave a Comment

An aerial view of a filter house, fan house, and 200-foot-tall exhaust stack that provided support to the Graphite Reactor, which is located about 100 feet away from these facilities. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

Federal cleanup crews are preparing to demolish three support facilities for the historic Graphite Reactor at Oak Ridge National Laboratory.

The demolition of the support facilities is planned for next year.

The deactivation work at the three facilities is being done by UCOR, a cleanup contractor for the U.S. Department of Energy’s Oak Ridge Office of Environmental Management.

The buildings include the filter house, or Building 3002; fan house, or Building 3003; and exhaust stack, or Building 3018. They were previously used to filter and release exhaust from Graphite Reactor operations.

[Read more…]

Crews prepare Y-12 building for demolition by removing asbestos, water

Posted at
By Leave a Comment

Built in 1944, Beta-1 is a former Manhattan Project era enrichment facility at the Y-12 National Security Complex. The Oak Ridge Office of Environmental Management expects to demolish the 210,000-square-foot facility in 2026. (Photo courtesy Y-12/UCOR)

Workers have finished major pre-demolition work on a wartime building at Y-12 National Security Complex.

The deactivation work at the Beta-1 building included removing asbestos; old, brittle thorium-contaminated piping; and more than two million gallons of water.

The Oak Ridge Office of Environmental Management and its contractor UCOR have been working toward the deactivation milestone since 2020, a press release said. Workers finished deactivating the above-ground floors of the Beta-1 facility in December. Now, only deactivation work in the basement remains before the teardown can begin. Demolition of Beta-1 is expected to begin in 2026.

Beta-1 was built in 1944 to enrich uranium for the top-secret Manhattan Project during World War II. That federal project built the world’s first atomic bombs. Beta-1, a 210,000-square-foot, two-story building, was later converted to laboratory space for fusion-energy technology.

[Read more…]

Workers devise strategies to clean up high-risk contaminated lab at ORNL

Posted at
By Leave a Comment

Workers lower detection equipment through an opening in the roof of the East Cell Bank at Oak Ridge National Laboratory to capture readings inside the facility. (Photo courtesy U.S. Department of Energy Environmental Management/UCOR)

Innovation has been required as federal cleanup crews work to deactivate and demolish the final portion of the former Radioisotope Development Laboratory at Oak Ridge National Laboratory.

The structure is known as the East Cell Bank, and it is on the U.S. Department of Energy’s list of high-risk excess contaminated facilities, said a press release from DOE Office of Environmental Management. The East Cell Bank is located in the heart of ORNL, near ongoing research missions.

Workers with cleanup contractor UCOR characterized the final cell to identify potential radiological and hazardous contamination, the press release said. They conducted the work in stages under a six-story protective structure erected to ensure nearby facilities and ongoing research missions at ORNL aren’t impacted by the cleanup.

The crews began by taking surveys and readings from an opening at the front of the structure, the release said. They used long-reach tools and a specialized radiation detector. The detector overlays a radiation-intensity color map on a picture of the environment and identifies gamma-ray emitting nuclides and their locations.

[Read more…]