D Line (RTD)

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D Line
RTD D-Line Convention Center Station.jpg
D Line at the Convention Center
Type Light rail
System Regional Transportation District
Status Operational
Locale Denver–Aurora Metropolitan Area
Termini 30th & Downing
Stations 17
Opened October 7, 1994
Owner Regional Transportation District
Operator(s) Regional Transportation District
Track gauge 4 ft 8 12 in (1,435 mm)
Electrification Overhead lines
Route diagram

The D Line – also referred to as the Green Line, because green is the line's color on maps – is a light rail line which is part of the light 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.


The D Line's northern terminus is in Five Points northeast of downtown Denver. It goes through downtown, running southwest along Welton Street, then going up 19th Street. On trips leaving downtown, the line goes along Stout Street and 14th Street; on trips from Littleton, the line runs along California Street. Then the line follows Stout Street and Colfax Avenue, and follows a railroad right-of-way, where it joins with the C Line at 10th & Osage Station. They run in tandem until they reach their southern terminus at Mineral Avenue in Littleton.[1]

Proposed L Line[edit]

Central Rail Extension Mobility Study Final Report[2] proposes that the D Line stations from 20th & Welton to 30th & Downing and future extension stations be operated on an independent route. This route would operate from the downtown loop to the new terminus at the shared A Line's 38th and Blake station.[3] Riders would have to transfer to the new L Line from the D Line as the D Line's new northern terminus would be the downtown loop. The 14th & California Station closed in 2004 would be restored to support the L Line at the Convention Center.[2]


The Convention Center/Performing Arts Station, which opened in 2004, replaces the 14th & Stout and 14th & California stations, which opened in 1994.

Name Opening Year Interchange Municipality park-n-Ride?
D Line (30th & Downing - Littleton/Mineral)
30th & Downing 1994 None Denver Yes
29th & Welton 1994
(closed 2013)
None Denver No
27th & Welton 1995 None Denver No
25th & Welton 1994 None Denver No
20th & Welton 1994 None Denver No
18th & California (northbound) and
18th & Stout (southbound)
1994  F  &  H  Lines Denver No
16th & California (northbound) and
16th & Stout (southbound)
1994  F  &  H  Lines
FREE MallRide (16th St)
Denver No
Theatre District / Convention Center 2004  F  &  H  Lines Denver No
Colfax at Auraria 1994  F  &  H  Lines Denver No
10th & Osage 1994  C ,  E ,  F  &  H  Lines Denver No
Alameda 1994  C ,  E ,  F  &  H  Lines Denver No
I-25 & Broadway 1994  C ,  E ,  F  &  H  Lines Denver Yes
Fare Zone Boundary
Evans 2000  C  Line Denver Yes
Englewood 2000  C  Line Englewood Yes
Oxford/City of Sheridan 2000  C  Line Sheridan No
Fare Zone Boundary
Littleton/Downtown 2000  C  Line Littleton Yes
Littleton/Mineral 2000  C  Line Littleton Yes


Main article: 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.[3] There may also be a station at C-470 and Santa Fe Boulevard. This extension may open as soon as 2017.[4]


  1. ^ "RTD - Light Rail System Map". Regional Transportation District. Retrieved June 2, 2014. 
  2. ^ a b "RTD - Central Rail Extension Mobility Study Final Report, December 2014". Regional Transportation District. Retrieved May 12, 2015. 
  3. ^ a b "RTD - FasTracks System Map". Regional Transportation District. Retrieved May 12, 2015. 
  4. ^ "Fastracks - Southwest Corridor". Regional Transportation District. Retrieved April 11, 2010. 

External links[edit]

Route map: Bing / Google

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