Washington Closure Hanford / Dept. of Energy

The Building 105N & 109N Demolition and Safe Storage Enclosure Project included hazardous materials abatement and demolition of all but the core portions of a nuclear reactor facility, then construction of a safe storage enclosure to protect the core portions of the reactor.

Location: Tri-Cities

This $38 Million project included abatement of residual hazardous materials, disassembly, demolition and construction of a safe storage enclosure for the 105-N Reactor and 109-N Heat Exchanger. Dickson Company demolished the reactor and heat exchanger, heavy concrete shield walls, slabs, pilings and other concrete structures as much as 80 feet tall, 27 feet below grade, and with walls up to 5 feet thick.

This project also required Dickson Company crews to utilize extensive radiological controls, demolish radiologically contaminated structures, and abate hazardous materials including lead, asbestos, PCB, mercury, beryllium, etc.

All of this work was completed months ahead of schedule, while working with close Department of Energy oversight, required Integrated Safety Management Systems, and the assistance of local labor, operator, and teamster union workers.

Demolition site

109 Building

Outside the 105 Building Reactor