The City of Longmont and contractor Native Sun Construction have completed the Coffman Street Mobility Improvements more than seven months ahead of schedule. The project transforms Coffman Street from 2nd Avenue to 9th Avenue into Longmont’s first multimodal corridor with safer bike lanes, wider sidewalks, updated traffic patterns and enhanced bus service for local, regional and future Bus Rapid Transit (BRT) planned for early 2028.

Safety has been significantly improved for people walking and bicycling through new separated bike lanes and dedicated bike boxes, protected intersections and crosswalks with flashing beacons. Moving the buses from Main Street to Coffman Street has also boosted travel reliability for commuters and transit riders, and a future connection to the 1st and Main Transit Station hub will create a stronger transportation spine through downtown.

“This corridor is an important part of reimagining how people move through downtown Longmont,” said Assistant City Manager David Hornbacher. “It gives buses a reliable pathway, it protects people biking and walking, and it prepares us for the future 1st and Main Station connection.”

What’s new on Coffman Street

Residents, riders and visitors will notice several changes along the corridor:

• Protected intersections at 4th Avenue and Longs Peak Avenue. These intersections are safer for bicyclists and pedestrians because they slow turning vehicles and improve visibility. A short video showing how protected intersections work is available on the Coffman Street Mobility Improvements webpage.
• Highly visible crosswalks and newly timed crosswalk signals. These upgrades make it easier and safer for bicyclists and pedestrians to cross Coffman Street and adjacent streets.
• New separated bike lanes. These lanes give riders more comfort and protection by creating a buffer zone from vehicles and the route will ultimately connect the St. Vrain Greenway to downtown.
• New dedicated bike boxes. The painted green boxes with the bike emblem are for bicyclists to wait in during red lights at intersections. They are typically in front of the white stop lines for vehicles and the pedestrian crosswalks. They allow bicyclists to get a head start on vehicles behind them when the light turns green so they can safely begin their next move, while following all existing rules of the road.
• New bus routes and shelters: Public buses will move from Bross Street to Coffman Street by the end of January 2026, at which time new BRT shelters will be installed.
• Dedicated bus lanes near bus stops. Buses that stop to pick up or drop off passengers will no longer interfere with general vehicle traffic.
• Removal of the traffic signal at Coffman Street and 5th Avenue. This change improves traffic flow through the corridor.
• New traffic signal at Coffman Street and 2nd Avenue coming in early 2026. This signal will help reduce congestion as transit activity increases.
• Southbound only access to the Post Office at 201 Coffman Street. This change reduces backups that were caused by northbound vehicles turning left into the customer parking lot and drive-through.
• Upgraded landscaping and utilities. New low-maintenance plants and landscaping rocks were added to keep Coffman Street beautiful and environmentally friendly, while overhead power lines were relocated underground and additional lighting was installed to increase safety and visibility.

The City encourages everyone to drive, ride or walk the new corridor to experience the improvements firsthand. An interactive StoryMap with an aerial illustration and an overview of how this project fits into Longmont’s overall transportation network is available on the Coffman Street Mobility Improvements webpage.

This project supports the City’s long-term vision to create a connected, multimodal downtown that balances the needs of transit riders, people who walk and bicycle, and people who drive.

If you have any questions or concerns regarding the project, please call the project hotline at 720-432-7058 or email CoffmanStreetMobility@longmontcolorado.gov.