UPDATE 10:12 P.M.: Interstate 70 is now open through Glenwood Canyon.

Original story:

Interstate 70 is closed through Glenwood Canyon between mile marker 116, the Glenwood Springs exit, and mile marker 133, the Dotsero exit, for a flash flood warning.

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The National Weather Service states the warning is expected to expire at 9 p.m. Sunday.

The Colorado Department of Transportation recommends using the northern alternate route on U.S. Highway 40 is recommended for most motorists. 

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“The northern alternate route will require approximately 2.5 hours additional travel time to reach your destination, compared to traveling on I-70 through Glenwood Canyon,” a CDOT news release states.

“Westbound motorists from the Denver metro area can reach the northern route via US Highway 40, Colorado Highway 9 or Colorado Highway 131. (When detouring north onto CO 9, motorists should anticipate construction at exit 205 in Silverthorne.) Travelers can then continue west on US Highway 40 and then south on CO 13 to complete the alternate route and return to westbound I-70 at Rifle (exit 90). For eastbound I-70 motorists, a traffic control point is in place at eastbound West Rifle (exit 87) to guide motorists to the northern alternate route. Motorists continue to have access to Glenwood Springs and the Roaring Fork Valley.”