Interstate 70 reopens west of Idaho Springs after rock blasting

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IDAHO SPRINGS, Colo. — Both directions of Interstate 70 west of Idaho Springs reopened Thursday after being closed for rock blasting, the Colorado Department of Transportation said.

The interstate was closed at noon for about 45 minutes between Fall River Road and Dumont. The frontage roads near the blasting site were also closed.

The rockfall mitigation began Monday and will continue through early June, requiring full closures of I-70 at least once a week until the work is completed.

Future closure dates have not been determined, but they will be done between from 11 a.m. to 3 p.m. Monday to Thursday, CDOT said.

Crews drill the rock face from 7 a.m. to 7 p.m. Monday through Friday to release air pockets and loosen the rock, making for more productive blasts.

A minor rock slide in April on westbound I-70 at Fall River Road led CDOT workers to do mitigation work to reduce the risk of future slides.

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