
East Colfax Bus Rapid Transit Project
Purpose
The project will deliver center-running BRT service along East Colfax Avenue from Broadway to Yosemite, with dedicated transit lanes, enhanced stations, and improved pedestrian and bicycle connections. Beyond this area, BRT will be side-running. Once in service, the East Colfax BRT will reduce transit travel times by up to 30 minutes, expand affordable and reliable access to more than 250,000 jobs and community services, enhance comfort and safety, and support placemaking and economic development opportunities along the corridor.
Impact
The East Colfax BRT Project was developed to meet the increasing demand for transit travel along Denver’s busiest corridor and to support the region’s future growth with safe, affordable, and equitable mobility. With population and employment expected to increase significantly through 2040, weekday ridership on East Colfax is projected to rise by as much as 40 percent, yet the corridor is already operating near capacity during peak hours. Its limited right-of-way leaves little room for expansion, and without major improvements, congestion and delays will only worsen, threatening reliability for the thousands of people who depend on Colfax transit every day. This project addresses these challenges with a faster, more reliable, and more accessible transit service that strengthens transportation connections throughout the region and reduces greenhouse gas emissions by enabling more non-motorized trips. It also advances Denver’s Vision Zero initiative, making the corridor safer for pedestrians, cyclists, motorists, and transit riders. Beyond transportation benefits, this project supports long-term economic vitality, encouraging future investment in the corridor, and expanding placemaking opportunities.
Envision Rating: Silver
Envision Award Date: July 29, 2025
Envision Version: v3
Project Owner: City and County of Denver
Project Sector: Transportation
Project Type: Road
Lead Envision Firm: Parsons
Partners
City and County of Denver, Regional Transportation District (RTD), City of Aurora, Colorado Department of Transportation (CDOT), U.S. Department of Transportation, Federal Transit Administration, Denver Regional Council of Governments (DRCOG), Colfax Mayfair Business Improvement District, Colfax Ave Business Improvement District, Bluebird Business Improvement District
Construction contractor: Kraemer, N.A.
Total Project Cost: $280.4 million
Project Delivery Method: Construction Manager / General Contractor
Project Timeline
2012–2014: Planning and initial analysis of corridor alternatives
2015–2016: Initial recommendation for side-running BRT on Colfax
2017–2018: Introduction and evaluation of center-running BRT on Colfax
2018–2019: Determination of center-running BRT as the locally preferred alternative
2020–2022: Preliminary design, engineering and environmental review
2023–2024: Final design and FTA Small Starts application and grant approval
2024–2027: Construction, testing and commissioning
Current status: In construction with approximately 31% complete as of September 2025
Project Website: East Colfax Avenue Bus Rapid Transit - City and County of Denver
ISI Envision Profile: https://sustainableinfrastructure.org/project-awards/east-colfax-bus-rapid-transit-project/
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