RICHLAND, Wash. (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 ...

The second Hanford PUREX plant tunnel storing highly radioactive waste has been stabilized to prevent a collapse. Work to fill the tunnel with concrete-like grout began in early October and was ...

A convoy of trucks has begun this week to fill a Hanford radioactive waste storage tunnel that is at risk of collapse, but a Seattle watchdog group is attempting to halt the work. On Sept. 28, the ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE - In this May 9, 2017 file photo, signs are posted by the Hanford Nuclear Reservation in Benton County, in Richland, Wash.

RICHLAND — The possible collapse of a second Hanford tunnel storing radioactive waste is both more likely than thought a year ago and the effects potentially more severe, according to Hanford ...

Washington State's Department of Ecology has launched a 45-day public comment period on whether to allow the US Department of Energy to fill a radioactive waste-containing tunnel at the Hanford site ...

The shoring of a waste storage tunnel at the Dept. of Energy’s Hanford Nuclear Waste Site in southeast Washington proved successful and wraps the response to a May 2017 partial collapse of an ...