Henry G. Shirley Memorial Highway
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The Henry G. Shirley Memorial Highway was Virginia's first limited access freeway. Begun in 1946, the 17.3 mile road was completed from Woodbridge, Virginia to the 14th Street Bridge over the Potomac River between Virginia and Washington, D.C., in 1952.
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[edit] History
The Shirley Highway was named in honor of Henry G. Shirley, the head of the Virginia Department of Highways (now Virginia Department of Transportation) from 1922 to 1941, who died in July, 1941, just a few weeks after giving the "go ahead" for work on the new freeway. The road was a four-lane freeway, and it was designated State Route 350 from its southern intersection with U.S. Route 1 north of the Occoquan River near Woodbridge, Virginia and its northern intersection with U.S. Route 1 near the Pentagon in Arlington, Virginia.
Construction began in October 1941. The first section in Arlington, from the Pentagon south to State Route 7, mostly 2 lanes, was opened in October 1943. This section was completed with four lanes in October 1944. Due to wartime constraints, the new freeway had an unusual at-grade railroad crossing instead of a bridge over the Washington and Old Dominion Railroad just north of Shirlington Circle. This location was the site of a fatal collision between a train and a dump truck on June 26, 1952. The remaining portions of the Shirley Highway south to Woodbridge were completed in 1952.
[edit] The original "Mixing Bowl": largest in the world
The new Shirley Highway included the "Mixing Bowl" interchange complex near the newly completed Pentagon (War Department Building), which was completed in 1944. At this location, the State Route 27 freeway (Washington Blvd.) merges with the Shirley Highway and then branches off again. The original interchange had a merge section each way, about 1/3 mile long, with a third "mixing lane" where the vehicles would weave when they wanted to change to the other freeway. It was rebuilt in the 1960s. After rebuilding, it was the largest interchange complex in the world. There are currently 52 lane-miles of roadways and ramps, with four freeway junctions and numerous local ramps, and with several interchanges to the reversible express (HOV) roadway, all within a 2.5 mile section of the Shirley Highway.
See also: Pentagon road network.
[edit] I-95, I-395
From 1965 to 1975, the Shirley Highway was reconstructed to Interstate Highway System standards. As portions were completed, they were designated as Interstate 95. Original plans called for I-95 to cut straight through Washington, D.C., and connect with the Capital Beltway (I-495) in Maryland. However, neighborhood opposition halted this plan in 1977, diverting planned funding to construction of the Washington Metro subway system.
Because of the cancellation of original proposed section of I-95 from New York Avenue in the District of Columbia, northward into Prince George's County to Interstate 495, the Capital Beltway, the I-95 designation was rerouted onto the eastern half of the Beltway. The remaining portion of the former Shirley Highway north of Springfield was redesignated Interstate 395, into D.C. up to its end at U.S. Highway 50 (New York Avenue).
[edit] Springfield Interchange
The roots of the Springfield Interchange began with the Shirley Highway. This jumble of highways in Springfield, Virginia, where I-395, I-95, and the Capital Beltway meet, is officially called the "Springfield Interchange." It is colloquially referred to as the "Mixing Bowl," but highway officials still use that terminology to refer to the interchange complex at the Pentagon (a.k.a. the Pentagon road network).
