UCOR announced Thursday that it has safely shipped more than 10,000 loads of waste from the K-25 building demolition project at East Tennessee Technology Park.

Workers demolishing the former gaseous diffusion building are close to finishing the facility’s east wing, except for five cells contaminated with technetium-99, a press release said.

“This slow-decaying radioactive material will require further deactivation before demolition begins,” it said.

The K-25 building, shut down in the early 1960s, was a mile-long U-shaped structure covering more than 40 acres. The west wing was demolished by a previous contractor.

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