This website contains updated information only for those corridors actively in construction, the Southeast Rail Extension and North Metro Rail. All other content on this website is meant for historical purposes only and may not be up-to-date. Please visit RTD-Denver.com for the latest information about RTD.
Flatiron Flyer - Bus Rapid Transit
The U.S. 36 project is a Colorado Department of Transportation-led project that brought 18 miles of Bus Rapid Transit (BRT) service between Downtown Denver and Boulder along U.S. 36 as part of the FasTracks program.
The Flatiron Flyer is the official name of RTD's new Bus Rapid Transit service that was added as part of the FasTracks program approved by voters in 2004. The Flatiron Flyer service, combined with the U.S. 36 highway and parking improvements, is the result of years of work and collaboration between RTD and CDOT.
The Flatiron Flyer is an efficient, quick and environmentally friendly commute option connecting Denver, Westminster, Broomfield, Boulder and everywhere in-between.
Convenient choices with multiple optionsWith the new line comes some new names. Match your current route with the new route name in the chart below.
See service changes that went into effect January 3, 2016.
Bikeway constructionFind out information about bikeway construction here.
Northwest Area Mobility StudyThe Northwest Area Mobility Study was an effort that developed a prioritized list of mobility improvements for the Northwest area of the Regional Transportation District's service area. Follow this link to learn more about the study.
Key LinksFlatiron Flyer bus rapid transit fact sheet.
Catch up on what's new.
Learn more about the project.
U.S. 36 BRT video flyover.