IDAHO SPRINGS, Colo. - Interstate 70 was closed in both directions at the Twin Tunnels for about 45 minutes starting at 1 p.m. Tuesday for emergency work.
The Colorado Department of Transportation said crews working on widening the westbound tunnel found "potentially hazardous rock" while surveying the area earlier Tuesday. They now need to do emergency rock stabilization.
"Crews will work to stabilize the area as quickly as possible in order to reopen the road," CDOT spokeswoman Crystal Morgan. "This work is necessary to ensure the safety of the traveling public along this well-traveled corridor."
The widening of the eastbound tunnel was completed last year. Currently, westbound traffic is using that tunnel and eastbound traffic is using a detour road to allow the widening of the westbound tunnel. When completed, both tunnels with have three lanes.
The Colorado Department of Transportation says the widening work is scheduled to be complete by the end of the year.