DILLON, Colo. — Installing a heat detection and sprinkler system in the Eisenhower-Johnson Memorial Tunnel will require lane closures on Interstate 70 beginning Monday night, the Colorado Department of Transportation said.
Up to 20 nights of closures are expected at the two bores of the tunnel under the Continental Divide.
Lane closures will begin at 8 p.m. with the reopening set for 6:30 a.m. the next day. There will be no closures on Friday and Saturday nights.
One bore of the tunnel will remain open at all times and pilot cars will lead traffic in alternating directions. Traffic will be held for up to 20 minutes as traffic going in the other direction uses the open bore, but longer delays are possible.
U.S. 6 over Loveland Pass can be used as an alternate route, weather permitting.
“The EJMT is one of Colorado’s most important assets and we must protect the public who utilizes it as well as the structure itself from long-term damage which could result in billions of dollars worth of damage,” CDOT Region Transportation Director Tony DeVito said.
“We know that any closure of the tunnel would have negative repercussions that would reverberate along the I-70 mountain corridor, which is why this project is so important.”
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