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: March 21, 2025.

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

Latest Updates:
  • Construction is currently occurring on the east side of Coffman St. from 3rd Avenue to 9th Avenue.
  • Northbound Coffman St. is closed between 3rd Ave. and 9th Ave. Traffic is one-way only in the southbound lane.
  • Northbound Coffman St. from 2nd Ave. to 3rd Ave. will close on March 24 for approximately three months.
  • The east side of the 4th Avenue intersection is closed an expected to open by March 28. No through traffic is allowed.
  • The east side of the 8th Avenue intersection is closed and is expected to open by April 1. No through traffic is allowed.


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

  • Access to businesses on 4th Avenue and 8th Avenue between Main Street and Coffman Street is from Main Street only while intersection work is being completed.
  • Access to businesses on Coffman Street between 3rd Avenue and 9th Avenue is from southbound Coffman Street.
  • Coffman St. between 6th Ave. and 9th Ave. is expected to fully open in April.
  • On-street parking on the east side of Coffman St. is currently prohibited between 3rd Ave. and 9th Ave. All public parking lots are open and accessible from southbound Coffman St.
  • A majority of driveways from Coffman St. will remain open unless a temporary closure has been approved by the property owner.

 

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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