The Green Line is a rapid transit line of the Washington Metro system , consisting of 21 stations in Washington, D.C. and Prince George’s County , United States. The Green Line runs from Branch Avenue to Greenbelt, connecting the southeast suburbs to the northeast suburbs through downtown Washington, D.C. It was the last line in the original Metro plan to be constructed. Planning for the Green Line began in 1968, at which point it was supposed to serve some of the poorest neighborhoods in Washington, D.C. Delays arose due to various disputes, including disagreements over funding and the line's routing. Partial service began in 1991. The line was completed on January 13, 2001, with the opening of the line's final five stations, marking the completion of the original 101-mile (163 km) system. It is one of three north–south lines through the city of Washington. The Green Line shares track with the Yellow Line from L’Enfant Plaza to Mount Vernon Square. Station List Branch Avenue Suitland Naylor Road Southern Avenue Congress Heights Anacostia Navy Yard-Ballpark Waterfront L’Enfant Plaza Archives-Navy Memorial-Penn Quarter Gallery Place-Chinatown Mount Vernon Square/7th Street-Convention Center Shaw-Howard University U Street/African-American Civil War Memorial/Cardozo Columbia Heights Georgia Avenue-Petworth Fort Totten West Hyattsville Hyattsville Crossing College Park-University of Maryland Greenbelt Termini Branch Avenue Greenbelt Stations 21 Type Rapid transit System Washington Metro Rolling Stock Breda 3000 Series Alstom 6000 Series Kawasaki 7000 Series Line length 23.04 mi (37.1 km) Track gauge 4 ft 8+1/4 in (1,429 mm) Electrification Third rail, 750 V DC
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