Constitution Avenue

Constitution Avenue

Signage on the 1900 block of Constitution Avenue NW, Washington, D.C.
Former name(s)	B Street
Maintained by	DDOT
Width	80 feet (24 m) (NW segment) 60 feet (18 m) (NE segment)
Location	Washington, D.C., U.S.
West end	US 50 (Theodore Roosevelt Bridge)
Major junctions	Virginia Avenue NW US 1 (14th Street NW) US 1 / US 50 (6th / 9th Streets NW) US 1 Alt. (Pennsylvania Avenue NW) US 1 Alt. (Maryland Avenue NE) Massachusetts Avenue NE
East end	21st Street NE
Construction
Commissioned	1791
Completion	1933

Constitution Avenue is a major east–west street in the northwest and northeast quadrants of the city of Washington, D.C., in the United States. It was originally known as B Street, and its western section was greatly lengthened and widened between 1925 and 1933. It received its current name on February 26, 1931, though it was almost named Jefferson Avenue in honor of Thomas Jefferson.^[1]

Constitution Avenue's western half defines the northern border of the National Mall and extends from the United States Capitol to the Theodore Roosevelt Bridge. Its eastern half runs through the neighborhoods of Capitol Hill and Kingman Park before it terminates at Robert F. Kennedy Memorial Stadium. Many federal departmental headquarters, memorials, and museums line Constitution Avenue's western segment.