D Line (RTD)

"Green Line (Denver)" redirects here. For other uses, see Green Line.

The D Line is a light rail line which is part of the rail system operated by the Regional Transportation District in the Denver–Aurora Metropolitan Area in Colorado. The D line was the first line in the system when it opened in 1994, traveling from 30th & Downing in Five Points, through downtown Denver, and terminating at I-25 & Broadway as the Central Corridor. It was extended along the Southwest Corridor in July 2000. Because it was the first and only line in the system, it had no letter or color designation until the Central Platte Valley Spur opened on April 5, 2002, although, on maps, it was designated as Route 101.

D Line
D Line at Convention Center station
Overview
Owner	Regional Transportation District
Locale	Denver metropolitan area
Termini	18th & California/18th & Stout Littleton–Mineral
Stations	12
Service
Type	Light rail
System	RTD Rail
Operator(s)	Regional Transportation District
Ridership	2,666,000 (FY2023, annual)[1]
History
Opened	October 7, 1994
Technical
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Electrification	Overhead line, 750 V DC
Route map D Line highlighted in green Show interactive map Legend to 30th & Downing 18th & Stout | California 16th & Stout | California Theatre District–Convention Center Colfax at Auraria to Union Station 10th & Osage US 6 6th Avenue Freeway Alameda I-25 I-25 & Broadway Evans Englewood Oxford–City of Sheridan Littleton–Downtown Littleton–Mineral SH 470 Lucent Boulevard & C-470 (planned) This diagram: view talk edit Show route diagram

Route

The D Line's northern terminus is in downtown Denver, at 19th Street. On trips from Littleton, the line runs along 14th Street and California Street before reaching the northern terminus; on trips leaving downtown, the line goes along Stout Street. Then the line follows Stout Street and Colfax Avenue, then runs along the Colorado Joint Line. The southern terminus is at Mineral Avenue in Littleton.^[2]

The line previously went as far north as Five Points, but was truncated to downtown with the commencement of L Line service in January 2018.

Stations

Station	Municipality	Opened	Major connections & notes
18th & California (northbound) 18th & Stout (southbound)	Denver	October 8, 1994	Flatiron Flyer
16th & California (northbound) 16th & Stout (southbound)			MallRide
14th & California (northbound) 14th & Stout (southbound)		October 8, 1994	Closed November 27, 2004
Theatre District–Convention Center		November 28, 2004
Colfax at Auraria		October 8, 1994
10th & Osage
Alameda			Park and ride: 240 spaces
I-25 & Broadway			Park and ride: 988 spaces
Evans		July 14, 2000	Park and ride: 99 spaces
Englewood	Englewood		Park and ride: 910 spaces
Oxford–City of Sheridan	Sheridan
Littleton–Downtown	Littleton		Park and ride: 361 spaces
Littleton–Mineral			Park and ride: 1,227 spaces
C-470 & Lucent	Highlands Ranch	—	Proposed

FasTracks

Main article: Fastracks

The 2004 voter approved FasTracks plan will add 2.5 mi (4.02 km) to the D Line. This will bring the line's southern terminus to a new station with 1,000 parking spots at C-470 and Lucent Boulevard in Highlands Ranch.^[3] An environmental evaluation for the station was completed in 2010.^[4] Plans for the design of this station were made along with the environmental evaluation, however station construction has received insufficient funding. There is no clear date for when construction is slated to begin. Additionally, the 2010 evaluation suggested an intermediate station at C-470 and South Erickson Boulevard, which was not a part of the original FasTracks plan.

FasTracks also includes the addition of an infill station^[5] next to West Bates Avenue in Englewood in between the existing Evans and Englewood stations, however no progress on the station has been made since FasTracks' approval in 2004.