Oak Ridge Today

K-25 demolition project receives American Nuclear Society award

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K-25 Building Demolition March 2014

Demolition work at the K-25 Building in west Oak Ridge is complete, and cleanup work is expected to be complete this summer.

 

The successful demolition of a former gaseous diffusion facility in Oak Ridge has been honored by the American Nuclear Society.

The American Nuclear Society’s Decommissioning and Environmental Services Division selected the K-25 demolition project to receive its Project Excellence Award. The K-25 building, located at East Tennessee Technology Park, was built as part of the Manhattan Project in the 1940s. The facility was shut down in 1964 after two decades of producing enriched uranium for defense and commercial purposes. As the massive, mile-long building began deteriorating, its demolition was considered one of the highest priorities for the environmental cleanup program in Oak Ridge.

UCOR, the U.S. Department of Energy’s cleanup contractor in Oak Ridge, completed the demolition project on Dec. 19, 2013. The demolition was completed ahead of schedule and under budget.

UCOR is a partnership between URS and CH2M Oak Ridge LLC. [Read more…]

Demolition begins on last section of historic K-25 Building

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K-25 East Wing Demolition

Workers begin demolishing the last section of the K-25 building on Tuesday. K-25 was built to enrich uranium for atomic bombs during World War II and was once the world’s largest building under one roof, but it’s been unused for decades. (Photo courtesy U.S. Department of Energy/UCOR)

Demolition work began Tuesday on the last section of the historic K-25 Building, which was erected to enrich uranium for atomic bombs during World War II and was once the world’s largest building under one roof.

Most of the building, which is in west Oak Ridge, has already been demolished. Only a small section of the east wing remains at the former mile-long, U-shaped building.

K-25 was built during the top-secret Manhattan Project in World War II to enrich uranium for nuclear weapons through a process known as gaseous diffusion. Those operations ended in 1964. [Read more…]

Transite panels being removed from last part of K-25 Building

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K-25 Transite Removal

More than 2,800 transite panels will be removed from the remainder of the K-25 Building. (Submitted photo)

A federal cleanup contractor in Oak Ridge is removing exterior panels known as transite panels from the last part of the K-25 Building that is still standing.

K-25 was built to enrich uranium for atomic bombs during World War II and was once the world’s largest building under one roof. It’s been unused for decades and is being torn down.

Most of the mile-long former gaseous diffusion building, located at East Tennessee Technology Park, has been demolished. About two million square feet of the U-shaped building have been removed, according to a Thursday press release from UCOR, the cleanup contractor for the U.S. Department of Energy in Oak Ridge. [Read more…]

Removal of K-25 north end demolition debris almost complete

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K-25 North End Demolition

With the north end demolished, only a small part of the east wing remains at the once-massive K-25 Building in west Oak Ridge. (Submitted photo)

Workers are almost done removing demolition debris from the K-25 Building’s north end.

Only a small section of the giant building’s east wing remains. It is contaminated with technetium-99, a slow-decaying radioactive isotope. Further deactivation of that section is needed before demolition can begin, according to a recent article in “Public Involvement News,” published by the U.S. Department of Energy Oak Ridge Office. [Read more…]

UCOR: Highest-risk components safely removed from K-27

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NaF Trap Removed at K-27

Ernie Gunter, left, and Michael Shirks watch as a NaF trip is lifted through the roof of K-27. (Submitted photos)

UCOR has removed the highest-risk components remaining in the K-27 building at East Tennessee Technology Park, a press release said.

Six components known as NaF, or sodium fluoride, traps have been removed by crane, the press release said.

The K-27 building is a “sister” to the mile-long K-25 gaseous diffusion process building, which is now nearly demolished, the release said. Both are Manhattan Project buildings built to produce materials for nuclear weapons. As work is completed at K-25, crews are shifting to K-27.

[Read more…]

Ferri retires, UCOR organization changing

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Mark Ferri

Mark Ferri

Jeff Bradford

Jeff Bradford

Mark Ferri, who has led the safe, successful deactivation and demolition work at K-25 since UCOR arrived in Oak Ridge in August 2011, has announced that he will retire from the company at the end of February and will accept a CH2M Hill corporate opportunity in the United Kingdom.

Ferri was part of UCOR’s original, handpicked leadership team. His selection proved a wise one, as progress under his leadership has been stellar. Workers have demolished more than two million square feet of the old gaseous diffusion facility, and more than 15,000 loads of waste have been shipped under the “pack as you go” philosophy that he and his counterpart, Waste Management Manager Jeff Bradford, installed as part of the UCOR way of doing business.

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