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A flagger directs traffic in Boulder Canyon during flood repair work on Oct. 1.
A flagger directs traffic in Boulder Canyon during flood repair work on Oct. 1.
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While work will continue on Boulder Canyon throughout the week of Christmas, there will be no regularly scheduled four-hour closures from Dec. 22-29, according to a news release from the Colorado Department of Transportation.

Motorists, however, should still expect delays. Throughout the holiday week, crews will be working inside single lane closures. A traffic signal zone will remain in place at mile marker 39, 24 hours a day, seven days a week to preserve the work areas, according to CDOT. Up to 40-minute delays are expected through the canyon during work hours. Speed limits are reduced to 25 mph in the construction zones. Motorists traveling the canyon will be guided around the single lane closures by flaggers. The work is weather-dependent, and the schedule could change.

The canyon was damaged in the 2013 flood. Construction on a 15-mile stretch of road will repair the roadway and better prepare the thoroughfare in the event of inclement weather. The process has involved scheduled canyon blasting, causing the regular closures. While CDOT officials hoped to finish canyon blasting by the end of the summer, unexpected reactions in the rock to the blasting delayed the project’s end.

Drivers are advised to plan for additional travel time or to consider alternate routes of Colo. 72 or Lefthand Canyon Drive during the full closure.