Oak Ridge cleanup team avoids six-month delay at ORNL demolition project

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Oak Ridge cleanup at ORNL

Highlights

Oak Ridge cleanup crews averted an estimated six-month delay at Building 3029 by engineering an internal repair to the only operational manipulator arm.
Field teams reactivated the inactive left-hand manipulator arm to restore operations, enabling removal of 18 high-dose radiological sources required before demolition.
This solution allowed uninterrupted progress on the 3,406-square-foot facility's cleanup, supporting timely risk reduction and continued research activities at ORNL.

In-house repair keeps demolition work on track

As reported by U.S. Department of Energy, citing the Department of Energy, crews at the U.S. Department of Energy’s Oak Ridge Office of Environmental Management and United Cleanup Oak Ridge developed an internal engineering solution after the only functioning right-hand manipulator arm inside Building 3029 suffered a critical failure. Replacing and installing a new arm was estimated to take up to six months, creating the risk of a significant setback to the demolition schedule.

Instead of stopping the cleanup effort, field teams manually re-engaged the mechanical drive of an inactive left-hand manipulator arm and used it to repair the damaged right arm. The approach restored the broken equipment without buying new hardware and allowed removal operations inside the building’s hot cells to continue.

Building 3029 previously supported radioisotope production for medical, industrial and national defense uses dating to the late 1940s. While preparing the 3,406-square-foot facility for teardown, crews identified 18 legacy high-dose radiological sources inside the hot cells that must be removed before structural demolition can proceed.

Cleanup progress supports Oak Ridge research mission

OREM says removing the highly radioactive materials is necessary to complete demolition safely and reduce risk at the site. Acting ORNL Portfolio Federal Project Director Michael Griswold says the solution keeps work moving forward at one of ORNL’s most difficult legacy facilities while avoiding months of possible schedule disruption.

UCOR ORNL Area Project Manager Chad York says the repair shows how the workforce is using existing resources and technical expertise to maximize taxpayer value. By avoiding a long wait for replacement equipment, the team continues advancing the cleanup mission and helps preserve space for ongoing science and research activities in ORNL’s central campus.

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