
Work crews demolish the last section of the North End of the historic K-25 Building in Oak Ridge on Wednesday. K-25 was built to enrich uranium during World War II and was once the world’s largest building under one roof.
Work crews demolished the last section of the North End of the historic K-25 Building in Oak Ridge on Wednesday morning.
Workers used a giant, orange demolition machine known as a high reach shear to bring down the four-story building, once the world’s largest under one roof. At times, the shear resembled a large dinosaur as its massive black jaws bit into the building’s 67-year-old skeleton.
Reporters, officials, and workers watched on a clear but chilly East Tennessee morning as the high reach shear sliced through vertical steel columns and tugged at horizontal beams. After about 20 minutes, the North End crashed to the ground. So did any dreams of preserving it that might have remained.





