R Line (RTD)

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R Line
Future R Line, Exposition & Sable, looking north, Aurora, CO.jpg
R Line tracks at the intersection of East Exposition Ave and South Sable Boulevard prior to operation
Type Light rail
System Regional Transportation District
Status Open
Locale Denver-Aurora Metropolitan Area
Termini Peoria
Stations 16
Opened November 17, 2006 (Original G Line)
February 24, 2017 (R Line)
Closed May 3, 2009 (Original G Line)
Owner Regional Transportation District
Operator(s) Regional Transportation District
Track gauge 4 ft 8 12 in (1,435 mm)
Electrification Overhead lines, 750 V DC
Route diagram

A Line
to Denver International Airport
Peoria  A 
13th Avenue
Fare Zone Boundary
2nd Avenue & Abilene
Aurora Metro Center
Nine Mile
 E  F  H 
Arapahoe at Village Center
Dry Creek
County Line
Lincoln  E  F 
↓ opens 2019
Sky Ridge Medical Center
Lone Tree City Center
RidgeGate Parkway

The R Line or Aurora Line/I-225 Rail[1] is a Regional Transportation District (RTD) light rail line that serves stations in Aurora, Denver, Greenwood Village, Centennial and Lone Tree.[2] Opening on February 24, 2017, the line was designated as the “R” line, reflecting the letter R’s in “Aurora” and “Ridgegate”.[3]

The line travels over newer and older portions of the RTD Light Rail system. The R Line was preceded by the G Line, which operated from 2006 to 2009 along the southern half of the route. The R Line is the only line in the RTD rail system not serving downtown Denver, as the G Line was when it operated.


November 17, 2006 saw the completion of the Southeast Corridor light rail project (part of the Transportation Expansion Project). One of the four routes that were part of the RTD’s service plan for the corridor, the route between Aurora and Lone Tree, was named the “G Line” and assigned the color brown.[4] The G Line’s northern terminus was at Nine Mile Station in Aurora on the I-225 branch of the system, shared with the H Line, while its southern terminus was at Lincoln Avenue Station in Lone Tree, shared with the E and F Lines.

In August 2007, night, Saturday, Sunday and holiday service on this route was discontinued due to low ridership. An exception was the lone northbound Owl service trip on weekend and holiday mornings. Service was further reduced to peak hour-only in August 2008 before being suspended entirely on May 3, 2009.[5]

FasTracks changes[edit]

I-225 Rail Line[edit]

The 2004 voter-approved FasTracks initiative marked the return of the Aurora-Lone Tree Line. The I-225 Corridor is a 10.5-mile (16.9 km) light rail line running through Aurora and facilitates a circumferential link between the Southeast Corridor and the East Corridor. The project will include seven new stations and provide 1,800 new parking spaces. Construction began in spring 2012 on a short section of the line as part of a joint contract with the Colorado Department of Transportation. Following an unsolicited proposal from Kiewit Infrastructure Company, funding was secured for the full line, which was expected to open in winter 2016.[6] The opening date was later pushed back.[7] On January 30, 2017, RTD announced that the H and R Lines would begin service on February 24, 2017.[8]

Southeast Corridor Extension[edit]

Regional Transportation District sent four teams a Request for Proposal for the Southeast Corridor extension, consisting of 2.3 miles (3.7 km) of new track south of Lincoln and three new stations: Sky Ridge Medical Center, Lone Tree City Center, and the terminus at RidgeGate Parkway.[9] On July 28, 2015, a design-build contract for the extension was awarded to Balfour Beatty Infrastructure Inc. Design on the extension will start in fall 2015, with construction starting in spring 2016, followed by opening in early 2019.[10]


The R Line travels south from Peoria Station in northwest Aurora, predominantly following Interstate 225 through central Aurora to Belleview Station in southeast Denver. It then follows Interstate 25 to its terminus at Lincoln Station in Lone Tree. It will be extended south to RidgeGate Parkway, along with the E and F lines on the Southeast Corridor, in 2019.


Name Opening Year Interchange Municipality park-n-Ride? Status
R Line (Peoria Station – Lincoln Avenue)
Peoria 2016  A  Line Aurora Yes Open
Fitzsimons 2017 None Aurora No Open
Colfax 2017 None Aurora No Open
13th Avenue 2017 None Aurora Yes Open
2nd Avenue & Abilene 2017 None Aurora Yes Open
Aurora Metro Center 2017 None Aurora Yes Open
Florida 2017  H  Line Aurora No Open
Iliff 2017  H  Line Aurora Yes Open
Nine Mile 2006  H  Line Aurora Yes Open
Dayton 2006  H  Line Aurora Yes Open
Belleview 2006  E  &  F  Lines Denver Yes Open
Orchard 2006  E  &  F  Lines Greenwood Village Yes Open
Arapahoe at Village Center 2006  E  &  F  Lines Greenwood Village Yes Open
Dry Creek 2006  E  &  F  Lines Centennial Yes Open
County Line 2006  E  &  F  Lines Lone Tree Yes Open
Lincoln 2006  E  &  F  Lines Lone Tree Yes Open
Sky Ridge 2019[9]  E  &  F  Lines Lone Tree No Under Construction
Lone Tree City Center 2019[9]  E  &  F  Lines Lone Tree No Under Construction
RidgeGate 2019[9]  E  &  F  Lines Lone Tree Yes Under Construction


  1. ^ "RTD - R Line". Regional Transportation District. Retrieved Jul 17, 2015. 
  2. ^ "RTD - I-225 Rail Line". Regional Transportation District. Retrieved January 29, 2015. 
  3. ^ "Aurora News Weekly" (13 Jul 2015). City of Aurora, Colorado. Retrieved 17 Jul 2015. 
  4. ^ "RTD 🇪🇭 Southeast Light Rail". Regional Transportation District. Archived from the original on October 24, 2007. Retrieved June 4, 2014. 
  5. ^ Jeffrey Leib (January 13, 2009). "RTD plans to reduce service". The Denver Post. Retrieved February 24, 2017. 
  6. ^ "FasTracks - I-225 Corridor". Regional Transportation District. Retrieved June 4, 2014. 
  7. ^ Paul, Jesse (18 November 2016). "RTD will not open G-Line or R-Line before end of year as planned". The Denver Post. Retrieved 20 November 2016. 
  8. ^ "RTD". www3.rtd-denver.com. Retrieved 2017-01-31. 
  9. ^ a b c d "Southeast Rail Extension". Regional Transportation District. Retrieved May 14, 2015. 
  10. ^ "Contract approved to extend Southeast Rail Line in Douglas County". RTD FasTracks. Regional Transportation District of Denver. Retrieved 3 August 2015. 

External links[edit]

Route map: Google

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