RICHLAND (AP) — The U.S. Department of Energy has decided a partially collapsed tunnel containing radioactive waste will be filled with a concrete-like grout.
The tunnel is located on the Hanford Nuclear Reservation in Washington state, and contains wastes left over from the production of plutonium for nuclear weapons...
SPOKANE (AP) — Workers have placed a protective cover over a partially-collapsed tunnel filled with radioactive waste on the Hanford Nuclear Reservation.
The U.S. Department of Energy said workers finished installing the cover over the weekend at the former plutonium production site near Richland, Washington...
RICHLAND (AP) — U.S. Energy Secretary Rick Perry says his agency will conduct a study to determine what led to the collapse of a tunnel at Hanford Nuclear Reservation in Washington state.
Perry said Wednesday that the tunnel obviously deteriorated and the question that needs to be answered now is why that was allowed to happen...
SEATTLE (AP) — Twenty-nine months late, the massive drill boring a new Highway 99 tunnel below Seattle is almost done with its work.
The Seattle Times reports that the drill, known as "Bertha," is expected to chew through a concrete retaining wall in the next few days and emerge into daylight, ending a 1...
SEATTLE (AP) — The troubled project to replace Seattle's Alaskan Way Viaduct with a tunnel faces $223 million in cost overruns.
The Washington state Department of Transportation said Thursday the additional money is needed for the project, originally slated to cost $3...
SEATTLE (AP) — The machine digging a tunnel to replace Seattle's Alaskan Way Viaduct has resumed work.
State transportation officials said the boring machine, known as Bertha, resumed mining Tuesday after the state allowed the work to continue. Las...