Streetcars in Washington, D.C. and Maryland Streetcars in Washington, D.C. and Maryland Streetcars and interurbans operated in the Maryland suburbs of Washington, D.C., between 1890 and 1962. Lines in Maryland were established as separate legal entities, but eventually they were all owned or leased by DC Transit (see Streetcars in Washington, D.C.). Unlike the Virginia lines, the Washington and Maryland lines were scheduled as a single system. Most of the streetcars were built with grand plans in mind, but none succeeded financially. A combination of the rise of the automobile, various economic downturns and bustitution eventually spelled the end of streetcars in southern Maryland. The Rock
Maryland Route 4 Maryland Route 4 Maryland Route 4 (MD 4) is a state highway in the U.S. state of Maryland. The highway runs from MD 5 in Leonardtown north to Southern Avenue in Suitland at the District of Columbia boundary, beyond which the highway continues into Washington as Pennsylvania Avenue. MD 4 is a four- to six-lane highway that connects Washington and communities around the Capital Beltway (Interstate 95 and I-495) with southern Prince George's County with southwestern Anne Arundel County. The highway is the primary highway for the length of Calvert County, during most of which the route runs concurrently with