RTD officials said they began the groundwork for the North Line as far back as 2009, including purchasing the rail right-of-way from the Union Pacific Railroad for $117 million.

A train pulls into the Olde Town Arvada station along RTD's new G-Line on April 23, 2019. The station is the fifth stop from Union Station on the 11-mile G Line that will open April 26, taking ...

Colorado’s Regional Transportation District is once again involved in a plan to build a rail line to serve communities north ...

To date, RTD has built 25.1 miles of light rail lines and 53 miles of commuter rail lines, launched the Flatiron Flyer BRT (bus rapid transit) service and opened an intermodal hub at Union Station.

Starting with the opening of a commuter rail line to Denver International Airport next month, RTD will more than double its rail miles in the Denver metro area in 2016.

This major reconstruction project was the first of its kind in RTD’s history and focused on investing in the agency’s oldest rail infrastructure. The multi-phased project will improve safety and ...

Passenger rail service to Longmont is back on the Regional Transportation District’s radar. Since 2004, commuters’ dreams of ...

"The Downtown Loop in Denver’s Central Business District is part of RTD’s inaugural light rail line and opened in October 1994," RTD said. "After nearly 30 years of continual service, several ...

Board of Directors voted to join other transit officials in exploring the feasibility of a passenger rail from Denver's Union ...

RTD's website rtd-denver.com has more information about those delays. All of RTD's commuter rail lines and bus routes are functioning as normal. More from CBS News.