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.
Updated: October 21, 2025.
Construction started at the end of June 2024 and is expected to be completed by the end of 2025.
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- Construction of the Coffman St. corridor is substantially complete.
- The designated bike lanes are for bicyclists only. Pedestrians must use the adjacent sidewalks and avoid using lanes marked with bike symbols and signs.
- Learn more about how to use a protected intersection when you watch the informational video above.
- There is a new “No Left Turn” sign from northbound Coffman St. into the Post Office parking lot at 201 Coffman St. U-turns are not allowed. Vehicles should access the parking lot from 3rd Ave.
- De-icer should not be used this winter on the concrete sidewalks that were replaced during this project. Businesses should consider an alternative such as sand.
- Some final work including landscaping will happen in the spring of 2026 after the winter season.
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- 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
In 2016 the Longmont City Council adopted Envision Longmont, a Multimodal and Comprehensive Plan for the City. Part of the Envision Longmont process specifically called out the effort to better define Enhanced Multiuse Corridors (EMUCs). In 2018, the Enhanced Multiuse Corridor Plan was completed, including Coffman Street as one of the key corridors. One unique piece of the Coffman Street corridor, that was not part of the other corridors in the plan, was the inclusion of a separate busway. The plan also showed the addition of separated bike facilities, and improved pedestrian features.
The existing 8th & Coffman transit transfer facility will be moved to the future transit/transportation hub at 1st Avenue & Main Street (1st & Main Station). This new facility and the improved Coffman Street will provide the spine of the transit system in Longmont when both projects are completed. The 2020 Subregional Transportation Improvement Plan (TIP) funding for this project includes dollars for design beginning 2021, with construction dollars programmed to begin in 2024.
Portions of Coffman Street will be partially closed during construction. The project will be phased so that only 2-3 blocks will be under active construction at the same time. Only one direction of traffic will be allowed on the blocks being constructed. Detour signs will direct traffic to Terry Street or Main Street to access Coffman Street from either the north or south, depending on which lane of traffic is open. Pedestrian access will be provided via sidewalks, cross-streets or alleyways. Walk-arounds will be provided when specific sections of sidewalks are under construction.
Construction will occur between Monday – Friday from 7 am – 7 pm. There may be times when work is required on the weekends due to weather and other factors. Notification will be provided under the Project Status section at the top of this page.
During construction, parking will not be allowed on Coffman Street on the blocks under active construction. The project will be phased so that only 2-3 blocks will be under construction at the same time. When construction is complete, on-street parking be available in some areas to accommodate the different types of motorists that need to park. Off-street parking developed alongside new residential & commercial buildings, will ensure that enough parking is provided along Coffman Street.
See the 2022 Downtown Longmont Parking Data Collection & Analysis for more information about parking along this corridor.
A limited number of trees will be removed to accommodate the new design. However, many of the existing trees will be maintained and additional landscaping features will be added between the sidewalks and bicycle lanes.
The current posted speed limit on Coffman Street is 25 mph. This will be maintained during and after construction.
The project will take approximately 2 years to complete. Construction began in summer of 2024 and is expected to be complete in summer of 2026.
