G Line (RTD)

The G Line, also known as the Gold Line during construction,[1] is a Regional Transportation District (RTD) electric commuter rail line between Denver Union Station and Wheat Ridge, Colorado.[2] Long scheduled to open in October 2016, the opening was delayed until mid-2019.[3][4] The reason specified for the delay was timing issues experienced by the other commuter rail lines in the RTD system, which currently require a Federal Railroad Administration waiver to operate their grade crossings manually, and the wireless crossing system used by those lines.[5]

G Line
G-Line Train at 41st and Fox.jpg
G-Line train at 41st and Fox Station
OwnerRegional Transportation District
LocaleDenver metropolitan area
TerminiUnion Station
Wheat Ridge/Ward
WebsiteRTD-Denver - G-Line
TypeCommuter rail
SystemRegional Transportation District
Operator(s)Denver Transit Partners
OpenedApril 26, 2019
Line length11.2 miles (18.0 km)
Track gauge4 ft 8 12 in (1,435 mm) standard gauge
ElectrificationOverhead lines, 25k V AC 60 Hz
Route diagram

Wheat Ridge/Ward
Arvada Ridge
Olde Town Arvada
SH 121 (Wadsworth Bypass)
SH 95 (Sheridan Boulevard)
60th & Sheridan/Arvada Gold Strike
US 287 (Federal Boulevard)
Clear Creek/Federal
Fare Zone Boundary
Pecos Junction
41st & Fox
Union Station
Amtrak A  B  N 
 C  E  W 


The Gold Line is part of the RTD’s FasTracks expansion plan, and is operated by Denver Transit Partners as part of the Eagle P3 public–private partnership.[6] The line received a Record of Decision approval from the Federal Transit Administration in November 2009 allowing the line to be developed.[7] Groundbreaking for the line occurred on August 31, 2011, at a ceremony in Olde Town Arvada where US Transportation Secretary Ray LaHood announced the approval of a $1 billion grant to fund the project.[8]

The line is 11.2 miles (18.0 km) in length,[8] and was expected to cost $590.5 million.[7] There are a total of eight stations: Union Station, 41st Avenue, Pecos, Federal, Sheridan, Olde Town, Arvada Ridge and Ward Road.[7]

The project's nickname of the "Gold Line" refers to the June 1850 discovery of gold by Georgia prospector Lewis Ralston in Ralston Creek, which runs a few blocks from the Olde Town Station.[9]


Sign telling that a station is closed.

The G Line was originally scheduled to open in late 2016, but was delayed due to crossing gate issues with the RTD's A and B lines. The automated crossing gate system, unique to the RTD system, failed to receive federal and state approvals and relied on flaggers on a federal waiver for the first two lines. After RTD solved timing issues with the gates, subject to Federal Railroad Administration approval, the G Line opened without flaggers and quiet zones in place on April 26th, 2019. Testing began in January 2018 and the state's Public Utilities Commission approved the automated gates in March.[10][11] Pending FRA approval of the crossing systems in December 2018, the agency claimed it could begin operations as late as Q1 2019.[12] On April 1, 2019, RTD announced the opening of the G Line on April 26 following approval from respective organizations.[13]


The G Line's southern terminus is at Union Station in Denver. It runs on a railroad right-of-way north sharing track with the B Line until Pecos Junction station after which the two routes diverge. The G Line continues west to its terminus in Wheat Ridge.[14]


Name Opening Year Interchange Municipality / CDP Park and ride? Status
G Line (Union Station – Wheat Ridge / Ward)
Union Station 2014  A ,  B , &  N  Lines
 C ,  E , &  W  Lines
FREE MallRide (16th St)
Denver No Open
41st & Fox 2019  B  Line Denver Yes Open
Pecos Junction 2019  B  Line North Washington Yes Open
Clear Creek/Federal 2019 None Berkley Yes Open
60th & Sheridan/Arvada Gold Strike 2019 None Arvada Yes Open
Olde Town Arvada 2019 None Arvada Yes Open
Arvada Ridge 2019 None Arvada Yes Open
Wheat Ridge/Ward 2019 None Wheat Ridge Yes Open


  1. ^ http://www.rtd-denver.com/g-line.shtml
  2. ^ "RTD - G Line". Regional Transportation District. Retrieved June 22, 2015.
  3. ^ Paul, Jesse (November 18, 2016). "RTD will not open G-Line or R-Line before end of year as planned". The Denver Post. Retrieved November 20, 2016.
  4. ^ "FRA Approves Extended G Line Testing Period". RTD News. Regional Transportation District. Retrieved July 21, 2018.
  5. ^ Baumann, Joella (June 29, 2017). "Passengers waiting for RTD G-Line to open may be waiting until 2018". Denver Post. Retrieved August 15, 2017.
  6. ^ "Eagle P3 Commuter Rail Project, Denver, USA". Railway Technology. Archived from the original on September 12, 2011. Retrieved September 1, 2011.
  7. ^ a b c "Fastracks Gold Line To Wheat Ridge Approved". The Denver Channel. November 3, 2009. Retrieved September 3, 2011.
  8. ^ a b "USDOT provides $1 billion for Denver RTD's Eagle P3 commuter-rail project". Progressive Railroading. September 1, 2011. Archived from the original on September 12, 2011. Retrieved September 2, 2011.
  9. ^ "Stories Along the Line: Gold Line carries a rich name". Regional Transportation District. Retrieved June 4, 2015.
  10. ^ Aguilar, John (January 2, 2018). "Full-day testing on G-Line raises hope that long-delayed service is now on track". Denver Post. Retrieved May 22, 2018.
  11. ^ Worthington, Danika (March 28, 2018). "RTD wins state approval for G-Line start and eventual removal of costly A-Line flaggers". Denver Post. Retrieved May 22, 2018.
  12. ^ Aguilar, John (December 17, 2018). "Denver's tall buildings partly to blame for A-Line, G-Line problems, RTD tells feds". Denver Post. Retrieved December 18, 2018.
  13. ^ Wingerter, Meg (April 1, 2019). "RTD: Long-delayed G-Line from Denver to Wheat Ridge will open April 26". The Denver Post. Retrieved April 1, 2019.
  14. ^ "RTD - Northwest Rail Line - Project Map". Regional Transportation District. Retrieved February 11, 2015.

Route map:

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