Winter shutdown for CO 9 construction in Summit County

Travel Advisory

October 27, 2020 - Northwestern Colorado - Work will stop on Nov. 1

SUMMIT COUNTY – Starting Nov. 1, construction on Colorado Highway 9 near Frisco will begin shutting down, in preparation for the coming winter season. 

All four lanes will be open through the length of the CO 9 Widening from Iron Springs to Frisco, completing the widening to four lanes between Interstate 70 and Breckenridge. The new roundabout at Water Dance Drive/Peak One Blvd. will be fully operational, including push button LED crosswalk signs and overhead street lights.

Permanent signs and striping will be installed and all temporary traffic control devices will be removed from the roadway for the winter season. The new pedestrian underpass will be open, connecting the north side of the highway, where Frisco Adventure Park is located, to the southern side of the highway, where Summit County offices and St. Anthony Summit Medical Center are located.

Phase 2 of the CO 9 Widening from Iron Springs to Frisco is expected to resume May 1, 2021, with final completion of the project scheduled for mid October 2021.


During the winter shutdown, there are no travel impacts due to construction.


More information about this project is available at: 

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


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.

  • Anticipate lane shifts and merge when directed to do so

  • Expect delays, especially during peak travel times.

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

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

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

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

  • Be patient!


Safe transportation infrastructure is essential for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, construction continues on CDOT projects with social distancing and other health safety measures to reduce COVID-19 exposure on the worksite. The Colorado Department of Public Health and Environment announced guidelines for construction activities. The public is urged to join the campaign for #DoingMyPartCO and practice social distancing, wear face masks, stay at home when possible, and avoid nonessential travel. With fewer vehicles on the roads, CDOT crews will be able to work more efficiently and safely.


In early 2019, CDOT announced its Whole System — Whole Safety initiative to heighten safety awareness. This initiative takes a systematic statewide approach to safety combining the benefits of CDOT’s programs that address driving behaviors, our built environment and the organization's operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.


CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000 lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other agencies, including metropolitan planning organizations, local governments and airports. It also administers Bustang, the state-owned and operated inter-regional express service. Gov. Jared Polis has charged CDOT to further build on the state’s multimodal mobility options.