GLENWOOD SPRINGS, Colo.—Workers have hiked up the side of a Colorado canyon Tuesday to examine another boulder threatening to fall on Interstate 70 after a rock slide forced the highway to close indefinitely.
The Colorado Department of Transportation says the threatening rock is about 20 feet in diameter and sits about 900 feet above the roadway.
CDOT spokeswoman Mindy Crane says once crews reach the boulder, they’ll decide whether to pry it loose or break it up so it falls in smaller pieces.
About 20 boulders tumbled onto I-70 in Glenwood Canyon at about midnight Sunday. No injuries or damage to vehicles were reported, but the slide left holes as large as 10 by 20 feet in a bridge-like elevated section of roadway.
Crews are breaking up the boulders with explosives so they can be hauled away.
A 17-mile stretch of I-70 is closed in Glenwood Canyon from Glenwood Springs to Dotsero.
Crane says the department still has no estimate of on when it will reopen.
