The Sheridan Underpass – also known as the Sheridan Boulevard Multimodal Transportation Improvement (MTI) Project – is a federal-aid transportation project with oversight from the Colorado Department of Transportation (CDOT). It provides improvements for all modes of transportation for this highly-utilized corridor.

Project Includes

  • Map of new bikeway underpassInstallation of a pre-cast concrete arch underpass (42' wide by 14' tall)
  • A new U.S. 36 bikeway underpass connecting Downtown Westminster to the RTD U.S. 36 & Sheridan Station parking lot near Sheridan Boulevard and 88th Avenue 
  • New traffic signals at the West 88th Avenue and Sheridan Boulevard intersection
  • Widening Sheridan Boulevard to a six-lane facility, from Turnpike Drive to West 88th Place
  • Patterned concrete medians
  • Street and pedestrian lights
  • ADA ramps
  • Storm sewer drainage improvements

Multiple projects have created traffic impacts at Sheridan Boulevard and West 88th Avenue over the past few years. The Sheridan Boulevard MTI project will work to mitigate traffic impacts as much as possible.


It is anticipated that construction will start in September 2021 and be completed in 2023.

Current Work

The project team has completed all of the design review and are in the process of obtaining all approvals from CDOT prior to starting construction.

This project is utilizing a Construction Manager/General Contractor (CM/GC) contract delivery method, which hires a contractor during the design phase. CDOT agreed that the CM/GC is a viable contract delivery option. The CM/GC contractor is selected by a competent and experienced panel to review proposals submitted to the City after a two-month advertisement period in 2020.

The Construction Manager (CM) phase of the project is also known as pre-construction services. The entire goal of the CM phase is for the selected contractor to work with the design team in order to reduce risk; thus, reducing the price and duration of construction. The General Contractor (GC) phase of the project includes the services for construction.

The contractor team has a dedicated public information manager to oversee the public outreach process throughout construction.


The City of Westminster applied for and accepted $5.6 million in Denver Regional Council of Governments (DRCOG) and state grant funding and an additional $1 million in CDOT contribution for the Sheridan Boulevard MTI project. The total project cost is estimated to be $12 million.

Contact Information

The project has set up the following resources allowing the public to communicate with the project team:

Text: SHERIDAN to 21000 for travel alerts


Hotline: (303) 219-9033