D Line (RTD)

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.

D Line
RTD D-Line Convention Center Station.jpg
D Line at the Convention Center
OwnerRegional Transportation District
LocaleDenver–Aurora Metropolitan Area
Termini18th & California/18th & Stout
TypeLight rail
SystemRegional Transportation District
Operator(s)Regional Transportation District
OpenedOctober 7, 1994
Track gauge4 ft 8 12 in (1,435 mm)
ElectrificationOverhead lines, 750 V DC
Route diagram

 F  H 
18th & Stout | 18th & California
16th & Stout | 16th & California
Theatre District–Convention Center
Colfax at Auraria
 C  E 
10th & Osage
I-25 & Broadway
Fare Zone Boundary
 E  F  H 
Oxford–City of Sheridan
Fare Zone Boundary
Littleton–Mineral  C 


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, 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]

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.


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)
18th & California (northbound) and
18th & Stout (southbound)
1994  F ,  H  &  L  Lines Denver No
16th & California (northbound) and
16th & Stout (southbound)
1994  F ,  H  &  L  Lines
FREE MallRide (16th St)
Denver No
14th & California (northbound) and
14th & Stout (southbound)
1994 (closed 2004)  F  &  H  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


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]


  1. ^ "RTD - Light Rail System Map". Regional Transportation District. Retrieved June 2, 2014.
  2. ^ "RTD - FasTracks System Map". Regional Transportation District. Archived from the original on December 23, 2013. Retrieved May 12, 2015.

External linksEdit

Route map:

KML is from Wikidata