East Colfax Transit Enhancements

The RTD bus routes 15 and 15L that travel along East Colfax serve as many passengers per day as some of our light rail corridors. Soon, the East Colfax corridor will receive transit enhancements to better serve our riders.

There are two projects in the works that will transform the future of East Colfax transit service:

15L route improvements project

15L route improvements project

Over the next several years, RTD will be upgrading all of the 15L stops between Broadway and I-225 to include enhanced shelters with lighting and security cameras. Other improvements such as queue bypass lanes, transit signal priority and bus bulbs will be added in key locations along the corridor.

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Colfax Corridor Connections

Colfax Corridor Connections

With support from RTD, the City and County of Denver is leading the Colfax Corridor Connections project which is intended to determine how best to improve transit, overall mobility and livability within the East Colfax corridor over the next 25 years.

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15L Route Improvements

Providing transit enhancements on Colfax

About the project

RTD has received grant funds from the Federal Transit Administration (FTA) and the Colorado Department of Transportation (CDOT) to provide transit enhancements on East Colfax, specifically at 15L bus stops and locations where transit experiences significant delay.

Project Elements

Bus Stop Enhancements (all 15L stops between Broadway and I-225)

Enhanced Shelters including:

  • In-shelter lighting
  • Security cameras
  • Benches
  • Trash cans
Prototype for enhanced shelter / canopy design
Review Scheduled Improvements
Operational Improvements (key locations where the bus currently experiences delay)
  • Bus bulbs
  • Queue bypass lanes
  • Transit Signal Priority
  • Relocate stops to the far-side of the intersection
Schematic of bus bulbs / curb extensions

Current Status

RTD is currently working through the environmental clearance and design portion of the project. Enter your contact information above or check back for updates to learn when elements will be implemented. It is anticipated that implementation of the enhancements will begin in 2018.


The future of East Colfax transit

About the Project

With support from RTD, the City and County of Denver (CCD) is leading the Colfax Corridor Connections project which is a study of transit and mobility within the East Colfax Corridor. The stated goal of the project is to improve transit, overall mobility and livability within the corridor now and over the next 25 years. The corridor study area is bounded by I-25 to the west, I-225 to the east, 12th Avenue to the south and 20th Avenue to the north.

Colfax Study Area Map

An Alternatives Analysis (AA) report was completed in June 2015 with Bus Rapid Transit (BRT) on Colfax being selected as the Locally Preferred Alternative (LPA). Key elements of the BRT are as follows:

  • Exclusive bus-only lane during peak hours for 4.7 miles (Broadway to Syracuse Street)
  • Enhanced bus stops for the entire length of the corridor with bus bulbs/curb extensions where appropriate
  • Branded buses with low-floor, multiple door boarding (off board fare collection)
  • BRT service would replace the existing Route 15L with more frequent service
  • Exclusive lane will allow right turning vehicles
  • Exclusive lane will replace a general purpose travel lane, not the parking lane

For more information about the Colfax Corridor Connections please visit: