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.

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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.

Timeline

Construction began in November 2021 and is expected to be completed in 2023. View the construction phasing map here.

Current Work

Current work includes:

  • Construction on the western half of the U.S. 36 bikeway underpass will continue through summer 2022.
  • Various construction activities will continue at the Sheridan Boulevard and W. 88 th Avenue intersection for the next several weeks.
  • Curb and gutter work for the small, raised intersection island will occur at the Sheridan Boulevard and westbound U.S. 36 entrance ramp.
  • Traffic signal poles and mast arms will be installed in various locations over the next several weeks.


Schedule and Traffic Impacts

Construction activities will be phased to minimize traffic impacts. Traffic configuration changes and lane closures will be announced on project message boards placed along the corridor.

  • Sheridan Boulevard between Turnpike Drive and U.S. Highway 36 will be in a temporary lane configuration through summer 2022 for construction of the western half of the U.S. 36 bikeway underpass.  All turn movements will be maintained at each intersection.
  • Narrow lanes will occur at Sheridan Boulevard at W. 88th Avenue to facilitate curb and gutter work for the raised islands.
  • Narrow lanes and various lane closures will occur at the Sheridan Boulevard and westbound U.S. 36 entrance ramp to facilitate curb and gutter work for the raised island.
    • One lane will be closed on the westbound U.S. 36 entrance ramp
    • One lane will be closed on the westbound U.S. 36 exit ramp
    • One of the two northbound Sheridan Boulevard to westbound U.S. 36 left turn lanes will be closed



U.S. 36 Bikeway Detour

The U.S. 36 Bikeway is currently closed between West 92nd Avenue and West 88th Avenue to accommodate construction. A local detour is in place for the duration of construction through early 2023.  View the detour.


Funding

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

Email: sheridan-underpass@workzone.info

Hotline: (303) 219-9033

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