Construction-Related Travel Impacts

Boulder County Transportation manages the construction projects for roads, bridges, pathways, drainage improvements and trails. The projects listed on this page are related to flood recovery and regularly scheduled roadway maintenance.

• Subscribe to the Transportation Email Listserv to receive timely project updates and other construction information
• Use the Road Service Request Form to let us know about an issue on area roads

County Road Projects with Travel Impacts

The following county roadway projects result in travel impacts to both motorists and cyclists. All dates and times listed are weather dependent. Please visit this page regularly for updates on the projects listed and for information on new projects. View the Roadway Closure Map to see these projects and where roads/bridges remain closed due to the 2013 flood.

• Lee Hill Drive Culvert Replacement – ROAD CLOSURES
  • Road will close at 7 a.m. on Monday, July 9and reopen at 6 p.m. on Thursday
  • This closure schedule will be maintained until mid-August
    • We will do our best to get a lane open before school starts on August 17
  • Project Contact – Andrew Barth – 303-441-1032

• Brainard Road Reconstruction – ROAD REOPENS AT 6 a.m. on FRIDAY, JUNE 29, 2018
  • • Project Contact – Andrew Barth – 303-441-1032
• Fourmile Canyon Flood Recovery Work – Expect delays on Fourmile Canyon Drive and Gold Run Road
  • Normal Hours – 8 a.m. to 4:30 p.m. – Monday through Friday
  • Delays of up-to 15-minutes in:
    • Lower Fourmile Canyon (just north of CO 119/Boulder Canyon Drive)
    • Upper Fourmile Canyon (west of Salina Junction)
      • 2-hour, weekday roadway closures through July 2018
      • Road closed
        • 8:30 to 10:30 a.m.
        • 11 a.m. to 1 p.m.
        • 1:30 p.m. to 3:30 p.m.
    • Gold Run Road (north of Salina Junction)
  • CYCLING RESTRICTIONS DURING WORKING HOURS – SEE BELOW
  • Project Contact – Andrew Barth – 303-441-1032
• James Canyon Drive Flood Recovery Permanent Repairs –
  • Expect travel delays of up-to 45-minutes between Lefthand Canyon and Jamestown
    • Actual delays will likely be shorter (10 to 15 minutes)
  • Single Lane Closures – Multiple locations – 24 hours a day/7 days a week
  • Road will remain open to cyclists
    • Expect heavy truck traffic and rough travel conditions in short stretches
  • December 2018 estimated completion date – weather permitting
  • Project Contact – Andrew Barth – 303-441-1032
• Wagonwheel Gap Road Flood Recovery Project – Lane closures & Travel Delays
  • Expect single-lane closures and travel delays ranging up to 15-minutes
  • Longer delays may be necessary at times – visit the project website for detailed information
  • Bow Mountain Drive closed at Wagonwheel Gap Road while a new bridge is constructed
  • Project Contact – Andrew Barth – 303-441-1032

Cycling – Projects impacting cycling

• Fourmile Canyon Drive/Gold Run Road DAYTIME-WEEKDAY CYCLING RESTRICTIONS
  • No recreational cycling in Fourmile Canyon
    • 8 a.m. to 4:30 p.m. – Monday through Friday
    • CYCLING WILL BE ALLOWED ON JULY 4 & SEPT. 3 as no construction will take place on these holidays.
  • Residential cycling exception – Must carry valid ID proving residency
  • SEE MAP
  • Restrictions in place due to increased volume of large truck traffic associated with three construction projects
    • Thank you for following restrictions
  • Project Contact – Andrew Barth – 303-441-1032

View the Cycling Closure Map .

Other Non-County Construction and Events resulting in travel restrictions

• Special Event Permit Requests – Pending & Approved taking place throughout Boulder County
• Learn about road closures in the City of Boulder at www.BoulderConeZones.net.
• Learn about road closures in Longmont
• Learn about road closures in Lafayette
• Learn about road closures in Louisville
• Learn about road closures in Erie