Overnight alternating traffic at the Interstate 70 Eisenhower-Johnson Memorial Tunnel begins in late April, according to a news release from the Colorado Department of Transportation.
Ongoing tunnel projects and maintenance work, including improvements to drainage and signage and security, require lane closures in the tunnel throughout the spring and summer. These closures were suspended over the winter and will resume with consistent warmer weather.
Lane closures will begin overnight on April 28. A single lane will be closed in the westbound bore of the tunnel from 10 p.m. to 6 a.m. Periods of full overnight closures of the westbound bore will begin April 29. Alternating traffic will use the eastbound bore April 29 to May 2, May 5 to 9 and May 12 to 16 from 10 p.m. to 6 a.m., the release states.
Both directions of I-70 traffic will stop at the tunnel entrance while one direction of travel is escorted through the open bore. Traffic stops will last for 20 minutes and delays will be minimal, according to the CDOT.
During the May closures, maintenance crews will wash the tunnel walls, clean the drains and sweep the pavement. More work will require overnight single lane and full bore closures with alternating traffic over the summer. According to the CDOT, work will take place Sunday through Thursday nights with no planned closures on weekends or holidays.
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