Temporary roundabout on CO 9 in Frisco begins July 1

Travel Advisory

June 22, 2021 - Northwestern Colorado - Motorists should expect striping crews on roadway

SUMMIT COUNTY – Starting July 1, traffic on the Colorado Highway 9 widening project near Frisco will be realigned to a single lane temporary roundabout at CO 9 and 8th Avenue. This traffic configuration will remain in place for the duration of the 2021 construction season until the final roundabout is completed. Work will not take place over the July 4 holiday weekend, and the project is anticipated to be complete this fall.

During construction, the temporary roundabout is expected to improve traffic flow. Motorists should still expect possible traffic delays lasting up to 15 minutes, as traffic volumes increase throughout the summer months. After construction is complete, there will be new sidewalks, crosswalks, and LED signs at 8th Ave to increase pedestrian mobility and safety.

Travel Impacts

Daytime work hours range from 7 a.m. to 7 p.m. Monday through Friday. Vehicles are reduced to a single lane in both directions for the duration of the 2021 construction season. Motorists should expect flaggers on the roadway to help guide them through the construction zone or when work is near intersections and the recreation path. The speed limit is reduced to 35 mph, and work zone fines are doubled. Motorists should plan for possible 15-minute traffic delays.

Project & Travel Info

For additional information about this project, contact the project team. 


Travelers are urged to “know before you go.” Gather information about weather forecasts, anticipated travel impacts, and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.

  • Stay Alert! Expect the unexpected.

  • Watch for workers. Drive with caution.

  • Don't change lanes unnecessarily.

  • Avoid using mobile devices such as phones while driving in work zones.

  • Turn on headlights so that workers and other drivers can see you.

  • Expect delays, especially during peak travel times.

  • Allow ample space between you and the car in front of you.

  • Anticipate lane shifts and merge when directed to do so.

  • Be especially alert at night while driving in work zones.

  • Be patient!

About CDOT

CDOT’s Whole System-Whole Safety program has one simple mission — to get everyone home safely. Our approximately 3,000 employees work tirelessly to reduce the rate and severity of crashes and improve the safety of all modes of transportation. The department manages more than 23,000 lane miles of highway, more than 3,000 bridges and 35 mountain passes. CDOT also manages grant partnerships with a range of agencies, including metropolitan planning organizations, local governments and airports. It also operates Bustang, the state-owned interregional express bus service. Gov. Jared Polis has charged CDOT to further build on the state’s intermodal mobility options.