Flagstaff Road reconstruction project - Daytime road closures

Wednesday, June 18, 2014

Road closed to all traffic 8:30 a.m. to 3:30 p.m., Monday through Friday.

Contractors are rebuilding a portion of Flagstaff Road, which was heavily damaged during the September 2013 flood event. In order to complete the repairs, Boulder County Transportation will close the road in both directions to all users from 8:30 a.m. to 3:30 p.m., Monday through Friday, until the project is complete at the end of November 2014.

Access to the top of Flagstaff Road will be available during weekday closures via Gross Dam Road which connects from Colorado State Highway 72/Coal Creek Canyon Drive. 

Several dates throughout the summer have been identified when no construction activities will take place so that the roadway can remain open to accommodate special events that were scheduled prior to the construction schedule being set. Those dates include:
  • Friday, July 4
  • Friday, July 11
  • Friday, Aug. 1
  • Friday, Aug. 29
  • Monday, Sept. 1
During the project, hiking trails on and around Flagstaff Mountain will remain open and accessible to hikers. No bikes are allowed on trails leading up and down Flagstaff Mountain. Gregory Canyon Road remains closed due to the damages sustained during the September 2013 flood event. Learn more about the hiking trails by visiting the City of Boulder's Open Space & Mountain Parks website

The Flagstaff Road project involves constructing a bridge that will span the damaged area and several additional feet of the road. The bridge is being installed to lessen the chance of a future major roadway failure resulting in additional repairs. The project will cost approximately $2.2 million.  

Arrangements have been made with the Boulder County Sheriff’s Office, Rocky Mountain Fire District, and the City of Boulder Police Department to ensure that emergency service providers can respond to any situation that may occur above the closure area. 

While Boulder County Transportation strives to complete all projects on-time, work is weather dependent and there may be delays due to rain or other unfavorable working conditions. 

For more information on the work, visit the project website, email Andrew Barth, Transportation Department communications specialist, or call 303-441-1032. 

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