Road work resumes on CO 9 in Summit County

Travel Advisory

May 5, 2021 - Northwestern Colorado - Work begins in early May

SUMMIT COUNTY – Starting the week of May 10, following winter shutdown, construction on Colorado Highway 9 near Frisco will resume. During Phase 2 of this project, primary work activities will take place between the intersections of Peak One Blvd. and Main Street. A new roundabout will be constructed at 8th Ave., with a temporary roundabout configuration expected by July 1. Additional work during this phase includes drainage improvements, signal replacement at Main Street, and new/upgraded pedestrian facilities.

Motorists can expect occasional lane closures between the new roundabout at Peak One Blvd. to Recreation Way as crews complete grading and seeding operations from Phase 1. Major components from Phase 1 are complete including the new roundabout at Peak One Blvd., LED pedestrian crossings, overhead street lighting, sound walls, and the pedestrian underpass connecting the County Commons to the Frisco Adventure Center. 

This final phase on the CO 9 corridor between Frisco and Breckenridge will reduce travel times and increase safety for both motorists and pedestrians. The project has an expected final completed date of mid-October 2021.

Travel Impacts

  • Early May – construction begins

  • July 1 – temporary roundabout configuration at 8th Ave.

  • CO-9 northbound and southbound single lane traffic with left or right lane closures for the construction season

  • Closure of the northbound left turn to Granite St.; access Granite St. via northbound left at 8th Ave.

  • Weekend and night work may be needed; these activities will be announced in advance

  • General working hours are Monday – Thursday 7 a.m. to 7 p.m. and Friday 7 a.m. to 12 p.m.

  • Delays up to 20 minutes can be expected

Stay Informed

More information 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:

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.

  • 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 all of us, particularly for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, CDOT maintenance and construction crews follow 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 by practicing social distancing and wearing face masks.  As traffic returns to normal levels, motorists must drive cautiously and heed the speed limit so all of us can return home safely. 

Whole System. Whole Safety.

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.

About CDOT 

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.