Virginia State Route 400

State Route 400
State Route 400
Washington Street
Route information
	Maintained by VDOT
Length	1.79 mi (2.88 km)
Existed	early 1980s–present
Major junctions
South end	George Washington Parkway in Alexandria
	SR 236 in Alexandria; SR 7 in Alexandria;
North end	George Washington Parkway in Alexandria
Location
Country	United States
State	Virginia
Counties	City of Alexandria
Highway system
	Virginia Routes; Interstate; US; Primary; Secondary; Byways; History; HOT lanes;

State Route 400 (SR 400) is a primary state highway in the U.S. state of Virginia. Locally known as Washington Street, the state highway runs 1.79 miles (2.88 km) from the south city limit of the independent city of Alexandria, Virginia north to 1st Street, still within Alexandria. SR 400 is a city street connection through Old Town Alexandria between the two segments of George Washington Memorial Parkway, one heading south toward Mount Vernon and one heading north toward District of Columbia. The Virginia Department of Transportation assigned the unsigned SR 90005 designation to run concurrently along the entire length of the parkway and of SR 400.^[1]

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