US 40 & CO 121 Traffic Signal Upgrades in Denver and Golden

 Project Complete!

On Thursday, March 18, CDOT and contractor Lumin8 (formerly WL Contractors) installed one of Colorado’s first 85-foot mast arms at the intersection of Wadsworth Boulevard and Stanford Avenue in Denver during night work operations. The new mast arms increase signal visibility for motorists traveling towards and through the intersection. We invite you to look at the attached photos to see the work that was done.

85-foot mast arms have also been installed at the other two projects locations, Wadsworth Boulevard & 29th Avenue in Wheat Ridge, and Interplaza West and Colfax Avenue in Golden. To date, crews have installed new traffic signals at all three locations. Remaining work includes activating the new traffic signals and the installation of Americans with Disabilities (ADA) compliant curb ramps. The project is expected to be complete in May 2021.

Work Locations:

  • Intersection of Interplaza West and West Colfax Avenue in Golden
  • Intersection of Wadsworth Boulevard and West 29th Avenue in Bel Air
  • Intersection of South Wadsworth Boulevard and West Stanford Avenue in Denver

Project Facts

  • Cost: $1,700,000
  • Contractor:  WL Contractors
  • Timeline: January 2021 - July 2021
  • Locations:  Colfax and Interplaza West, Golden; Wadsworth Blvd. and West Stanford Ave., Denver, and at intersection of Wadsworth and West 29th in Bel Aire.

Proposed Work Schedule

  • Typical working hours are 7 a.m. - 5 p.m. Mondays through Fridays.

Travel Impacts

  • Traffic impacts include single lane closures and temporarily inaccessible curb ramps during upgrades.
  • Motorists can expect various single lane closures and shoulder closures within the work areas during daytime hours.
  • Some overnight work with lane closures may occur. Updates will be posted on the project page.
  • Slowdowns and delays are expected.
  • Please drive safely through the work area when crews are present.