CO 121 Signal Improvements in Jefferson County

This project is in winter shutdown until spring with an anticipated completion date of early summer 2024.

About the Project

Work included replacing the antiquated existing traffic signals and with new traffic signal equipment.  This included poles, mast arms, vehicle detectors, closed circuit television cameras, advanced flashing beacons, signing and minor striping at each intersection. Additional work included removing and installing curb that is accessible for people with disabilities - Americans with Disabilities Act (ADA) ramps.

Project Benefits

  • Traffic signals are a vital part of controlling traffic in a safe and efficient manner by providing regulated movement. Vehicle detection reduces unnecessary delays and stops at the intersection while improving travel times and increasing the amount of traffic that an intersection can handle.
  • Other benefits of the project included the installation of ADA compliant curb ramps. The new ramps were constructed in compliance with the Public Right of Way Accessibility Guidelines (PROWAG) requirements and will provide function accessibility to all travelers using our state and US highways.

Project Facts

  • Construction Cost: $3.9 Million
  • Contractor: Sturgeon Electric of Denver
  • Timeline: June through early Summer 2024
  • Location: CO 121 (Wadsworth Pkwy.
    • 90th Avenue
    • 94th Avenue
    • Independence Drive
    • 100th Avenue and 101st Avenue
    • Nearest Town/City: Arvada, Westminster
    • Mile Point(s): 21.80 to 23.50
    • County: Jefferson
CO 121 Wadsworth project area map
CO 121 Wadsworth project area map