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CDOT Update CO119


Rock Blasting Tuesday April 23 and Thursday April 25


Monday, April 22 through Friday, April 27, sections of State Highway 119 – Boulder Canyon will have single and full closures. During working hours there will be up to 4 areas impacted concurrently.


A single lane closure will remain in place near MP 39, 24-hrs a day, 7 days a week to preserve the work zone area. Traffic will be managed by a timed traffic signal.


Work on several drainage culverts along the highway will continue throughout the week, Monday- Friday, between MP 27-35. The locations of the culvert crews will change throughout the day. Pothole repair will begin on Wednesday and will also last throughout the week, impacting MP 29-38. Motorists will be guided around both of these single lane closures with traffic control flaggers.


Tuesday, April 23, and Thursday, April 25, rock blasting activities at MP 39-40 will result in a full closure of CO119; for 2 hours at a time, between the hours of 9 a.m. to 11 a.m. and again from 1 p.m. to 3 p.m.


Work hours for this week are 7 a.m. to 5 p.m. Up to 30-minute delays are expected through the canyon during work hours. Speed limits are reduced to 25 miles per hour in the construction zones. The work is weather dependent and the schedule may change. Please plan additional time to travel through the construction zones or to use the alternate route, CO-72 to Lefthand Canyon Drive.


Trail Closure

The Boulder Canyon Trail, from Boulder at the canyon mouth to the Fourmile Canyon trailhead, will be closed Monday evening, re-opening on Tuesday at 3 p.m. and Wednesday evening, re-opening Thursday at 3 p.m.


Creek Closure

The Boulder Canyon Creek will be closed Tuesday and Thursday, 7 a.m. – 3 p.m.