D Line
D
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
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 diagram Legend  L   H  18th & Stout | California 16th & Stout | California  L  Theatre District–Convention Center Colfax at Auraria  E  10th & Osage US 6 6th Avenue Freeway Alameda I-25 I-25 & Broadway Fare Zone Boundary  E  H  Evans Englewood Oxford–City of Sheridan Fare Zone Boundary Littleton–Downtown Littleton–Mineral SH 470 Lucent Boulevard & C-470 (planned) This diagram: view talk edit

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 downtown Denver to I-25 and 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.

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.^[1]

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

Fare zone	Station	Municipality	Opened	Major connections & notes
A	18th & California (northbound) 18th & Stout (southbound)	Denver	October 8, 1994	H  L  Flatiron Flyer
	16th & California (northbound) 16th & Stout (southbound)			H  L  MallRide
	14th & California (northbound) 14th & Stout (southbound)		October 8, 1994	Closed November 27, 2004
	Theatre District–Convention Center		November 28, 2004	H
	Colfax at Auraria		October 8, 1994	H
	10th & Osage			E  H
	Alameda			E  H  Park and ride: 240 spaces
	I-25 & Broadway			E  H  Park and ride: 1,248 spaces
B	Evans		July 14, 2000	Park and ride: 99 spaces
	Englewood	Englewood		Park and ride: 910 spaces
	Oxford–City of Sheridan	Sheridan
C	Littleton–Downtown	Littleton		Park and ride: 361 spaces
	Littleton–Mineral			Park and ride: 1,227 spaces

FasTracks

The 2004 voter approved FasTracks plan will add 2.5 mi (4.02 km) to the Southwest Corridor (C Line and D Line). It will also add a station with 1,000 parking spots at C-470 and Lucent Boulevard in Highlands Ranch.^[2]