UPDATE: Crews to evaluate stability of large boulder above highway | PostIndependent.com

UPDATE: Crews to evaluate stability of large boulder above highway

Courtesy of CDOTOne of the massive boulders that crashed onto the interstate Sunday night left a huge hole in the highway.

GLENWOOD SPRINGS – Crews started their hike up the mountain in the Glenwood Canyon early this morning to begin rock mitigation work on the area above the damaged section of Interstate 70.

According to the Colorado Department of Transportation, geologists believe a 20-foot diameter boulder may be too unstable to remain on the mountain above the highway. Once they reach the boulder, crews will determine the boulder’s stability and bring it down if necessary.

Governor Bill Ritter declared the 17-mile stretch of I-70 through Glenwood Canyon a disaster emergency Monday. The declaration will allow the state to seek funding from the Federal Highway Administration to help pay for repairs.

CDOT program engineer Joe Elsen estimated that repair costs could be as much as $2 million.

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CDOT is still not ready to estimate how soon the road will reopen for traffic.

The interstate has been closed in both directions at the Glenwood Canyon since about midnight Sunday after about 20 boulders, ranging in size from three to 20 feet, crashed down onto the road. The largest boulder weighed an estimated 66 tons, according to CDOT engineers.

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