US 6 & Post Boulevard Roundabout project to begin winter shutdown Dec. 21

Travel Advisory

Dec. 16, 2024 - Northwestern Colorado - Fully functional roundabout to be operational by shutdown

Eagle County — The Colorado Department of Transportation’s US Highway 6 and Post Boulevard Roundabout project in Avon will be going into a winter shutdown starting Dec. 21. This project was developed with the cooperation of CDOT, Town of Avon, Eagle Vail Metro District, Eagle County and the Federal Highway Administration.

The project team has worked extremely hard together to get the roundabout in a fully functional configuration before the winter shutdown. Final touches on the project, including landscaping, final roadway striping, and additional punch list items, will be completed in spring 2025. These dates are weather-dependent and subject to change.

Ultimately, the reconstruction of this roundabout addresses safety and operational issues, which stem from an insufficient original design, lack of directional guidance, and multimodal accommodations in line with current roundabout standards. The original design speed for this roundabout was too high, resulting in a higher amount of crashes compared to other similar roundabouts. The goal of this project is to physically slow vehicles entering the roundabout to enhance safety, efficiency and mobility for all users. However, the primary focus of the project is improving pedestrian and motor vehicle safety.

In addition to the geometry changes to accommodate the new design, there were also significant utility adjustments and the installation of a new storm drain system. The new storm drain system will improve stormwater management from Eagle-Vail Road to Stone Creek Drive and up to Nottingham Ranch Road. The work also includes a new inlet at Eagle-Vail Road and US 6 to address ponding in the area. Utility work within the project area during construction required the project team to coordinate with and accommodate the efforts of the following organizations:

  • XCEL - Installation of new service and distribution lines along with protection of existing high pressure gas main
  • Comcast and Lumin - Relocation and protection of fiber optic, telephone, and cable TV lines
  • Eagle River Water and Sanitation - Insulation and protection of high pressure water line and lining of existing sanitary sewer lines
Concrete pavement on the eastside of the US Highway 6 and Post Boulevard Roundabout project in Avon.
Concrete pavement on the eastside of the US Highway 6 and Post Boulevard Roundabout project in Avon.

Project Information

Community members are encouraged to sign up for traffic impact documents by providing an email address to the project email below:

Know Before You Go

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

Download the COtrip App!

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