Coffman Street Mobility Improvements - City of Longmont
A rendering of the crossing of Coffman St and 9th Avenue as viewed from the south
Project Overview

The Coffman Street Mobility Improvements project extends from 1st Avenue to 9th Avenue and will become a world-class and truly multi-modal corridor. It will provide the City with:

  • Robust public transit (local, regional and BRT buses), with a near-term future hub just south of 1st Avenue
  • Strong bicycle connections to and from downtown, including to the critical east/west Greenway and to the vibrant Old Town section of the City
  • Better and wider space for pedestrians, up and down the corridor

Do you want to experience the new downtown Coffman Street corridor?

Check out an interactive StoryMap that showcases the future  design and highlights what is being constructed.

Visit the StoryMap

Want to learn more about projects happening in downtown Longmont?

The Coffman Street Mobility Improvements project is just one of many new projects that will transform the area over the next few years. Explore more upcoming Downtown Longmont Projects.
Project Status

Updated: Feb. 21, 2025.

Construction started at the end of June 2024 and is expected to be completed in the summer of 2026.

Latest Updates:
  • Phase two of construction started February 3 and will move down the east side of Coffman St. from 6th Avenue to 2nd Ave. in consecutive blocks over the next three months.
  • Northbound Coffman St. is currently closed between 3rd Ave. and 9th Ave. Traffic is one-way only in the southbound lane.
  • The east side of the 5th Ave. intersection will be closed until the beginning of March. No through-traffic is allowed.
  • When the 5th Ave. intersection opens, the east side of the 4th Ave. intersection will be closed for approximately three weeks.
  • During the week of February 24:
    • Tree removals near 630 Coffman St., 667 4th Ave., and 436 Coffman St.
    • Drilling at the intersection of 3rd Ave. and Coffman St.


Phase 1 (Part 2 – East Side): December 2024 – June 2025 (Estimated)

  • Coffman St. between 6th and 9th Ave. is expected to fully open in April.
  • On-street parking on the east side of Coffman St. is currently prohibited in these blocks.

 

Phase 2 (East and West Sides): February 2025 – June 2026 (Estimated)

  • The northbound lanes of Coffman St. are closed between 3rd Ave. to The Spoke parking garage. Access to the garage will remain open during construction.
  • Parking is prohibited on the east side of Coffman St. while under construction. Access to the 300 W public parking lots is open.
  • A majority of driveways from Coffman St. will remain open unless a temporary closure has been approved by the property owner.
  • There will be intermittent lane closures at the intersections of Coffman St. and 3rd and 4th Avenues starting February 12. The intersections will remain open to vehicles and pedestrians.
cross section of plan for Coffman Street, showing parking, a bus lane, and two travel lanes
Project Map

The following map illustrates the project corridor and area of focus:

A Project Line Map of the proposed Coffman Street Busway
Project Schedule
  • Design Complete – December 2023
  • Bid Advertisement – March 2024
  • Construction Award – April 2024
  • Construction Start – June 2024
  • Construction Period – Anticipated 24 months

Coffman Street Mobility Improvement Project FAQs

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