CO 9 Widening from Iron Springs to Frisco

Traffic Impacts

Week of July 25-31, 2021

Listed below are the traffic impacts and road work to expect the week of July 25-31 for the CO 9 Widening project in Summit County:

  • For CO 9, northbound and southbound travelers, there are right lane closures with lane shifts near Main Street and 8th Avenue corners.
  • Night work will occur Monday - Thursday (7/26/21 – 7/29/21) 7:00pm-7:00am. Pipe crews will be installing sewer lines under CO 9 at the 8th Ave. intersection and traffic will be moved to a single lane configuration with flaggers, allowing one direction of traffic through at a time.
  • A temporary sidewalk on the south side of Main Street is in place between 7th Avenue and CO 9 during construction of the new sidewalk.

 Work Schedule:

  • Day work is Monday through Thursday, 7am-7pm and Friday, 7am-noon.

We will continue to keep you updated on any schedule changes and appreciate your continued patience.

About the Project

In May 2020, crews began widening CO 9 between MP 94.8 to 96.15 from Iron Springs to Frisco, Colorado, Summit County. The project includes:

  • Widening of CO 9 to four lanes
  • Installing noise walls along Water Dance and Frisco Bay Townhomes
  • Providing a pedestrian underpass between Peninsula Recreation Area and the County Commons
  • Building roundabouts at Water Dance Drive and 8th Avenue intersections
  • Rebuilding the CO 9 southbound free right turn lane onto Main Street
  • Replacing signals at Recreation Way and Main Street
  • Improving drainage throughout the corridor

This project is part of CDOT’s “Whole System. Whole Safety.” initiative aimed at enhancing safety for Colorado’s traveling public. The highway widening and intersection improvements will provide increased capacity, reduced travel times, as well as safer intersections and crossings for motorists and pedestrians.

For information on how to safely navigate a roundabout, please click:

Roundabout Driving Tips

We encourage the use of the Zipper Merge to improve traffic flow through the work zone.  Please click below for information on how to perform the Zipper Merge.

The Zipper Merge: Techniques to Keep Traffic Moving

Project Facts

  • Cost: $14 million
  • Contractor:  SEMA Construction
  • Timeline: May 2020 - October 2021
  • Location: CO 9 in Dillon, Colorado

CO 9 Widening from Iron Springs to Frisco

CO 9 Widening Project from Iron Springs to Frisco

Proposed Work Schedule

  • Construction will shut down for the winter from November 1, 2020 through May 1, 2021.
  • Work is scheduled to begin Monday, May 11 and be completed by mid-October 2021.

Planned Traffic Impacts

  • November 1, 2020 – May 1, 2021 - Crews mobilize and bring in equipment and set up work zone signage.