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Northwest Rail - B Line

Current construction list and detour maps

Northwest B Line opening July 25, 2016

Northwest Rail Line is a 41-mile high-capacity, fixed-guideway transit project from Denver Union Station to Longmont, passing through North Denver, Adams County, Westminster, Broomfield, Louisville and Boulder.

The first 6.2-mile segment of the Northwest Rail Line from Denver Union Station to south Westminster (71st Ave. and Lowell Blvd.) is funded as part of the Eagle P3 project. This commuter rail project is scheduled for completion in 2016.

Construction continues

Testing on the Northwest Rail "B" Line Westminster segment is underway. Meanwhile, construction activities continue. Please be alert for changing conditions, lane restrictions or road closures. Learn about it here.

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Northwest Rail Line map

RTD's new B Line trains will operate on the Northwest Rail Line.

Northwest Rail <br />Line map June 2015
Click here for a larger version

Northwest Rail Line fact sheet

See the facts, figures and highlights for the Northwest Rail Line.

Northwest Area Mobility Study

The Northwest Area Mobility Study started in May 2013 and lasted for about 13 months. It developed a prioritized list of mobility improvements for the Northwest area of the Regional Transportation District's (RTD) service area. Follow this link to learn more about the study.

If you would like to comment about the Northwest Rail project click here.

For additional resources and videos click here.

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