Talk:List of numbered highways in Washington, D.C.

Alignments
1927 RMcN (cut to the west) - the routes probably weren't signed in the city at that time - US 1/US 50 together to the east on Bladensburg Road, and US 240 on Connecticut Avenue (how far??)

1942 General Drafting Also note US 1 Truck in Alexandria.
 * 1942
 * US 1 - Highway Bridge, Maine Avenue, 17th Street, K Street, 11th Street, Rhode Island Avenue
 * US 1 Alternate - K Street, north side of Mount Vernon Square, New York Avenue (ended at New York Avenue and Bladensburg Road (US 1 Bypass))
 * US 1 Bypass/US 50 Bypass - 14th Street, D Street, Maryland Avenue, C Street, Maryland Avenue, Independence Avenue, 2nd Street, Maryland Avenue (both ways around Stanton Square), Bladensburg Road
 * US 29 - Lee Highway, Key Bridge, M Street, New Hampshire Avenue, 16th Street, Alaska Avenue, Georgia Avenue
 * US 50 - Lee Boulevard, Arlington Memorial Bridge, both ways around the Lincoln Memorial, 23rd Street, Constitution Avenue, 20th Street (looks like no one-way pair with 21st Street), K Street, north side of Mount Vernon Square, New York Avenue, Bladensburg Road, current MD 450
 * US 50 Alternate - 11th Street, Rhode Island Avenue, Barney Street?
 * US 50 Bypass - George Washington Memorial Parkway, Highway Bridge, US 1 Bypass (ended at New York Aveue and Bladensburg Road)
 * US 211 - Lee Highway, Key Bridge, M Street, Pennsylvania Avenue, K Street (ended where? probably at US 1 (17th Street))
 * US 240 - (probably began at US 1) George Washington Memorial Parkway, Arlington Memorial Bridge, both ways around the Lincoln Memorial, 23rd Street, Constitution Avenue, 20th Street and 21st Street (which was which direction?), Massachusetts Avenue, Wisconsin Avenue
 * US 240 Alternate - [21st Street, S Street](20th Street, Connecticut Avenue)?, Connecticut Avenue, East-West Highway
 * DC 4/DC 5 - (began at US 1 (17th Street)?) [E Street](State Place, West Executive Avenue), E Street, Pennsylvania Avenue, 1st Street, Independence Avenue, Pennsylvania Avenue
 * DC 4 - Pennsylvania Avenue, Alabama Avenue
 * DC 5 - 11th Street, Anacostia Bridge, Nichols Avenue, Good Hope Road, Naylor Road

Washington West Alexandria Anacostia Washington East 1946 RMcN
 * 1940s
 * US 1 - Jefferson Davis Highway, Highway Bridge, 14th Street, Vermont Avenue, Rhode Island Avenue
 * US 1 Alternate - [D Street, Maryland Avenue](C Street), C Street, Maryland Avenue, 3rd Street, New York Avenue, Bladensburg Road
 * US 29/US 211 - Lee Highway, Key Bridge, M Street, New Hampshire Avenue, 16th Street, Alaska Avenue, Georgia Avenue (US 211 ended at ?)
 * US 50 - Lee Boulevard, Arlington Memorial Bridge, both ways around the Lincoln Memorial, 23rd Street, K Street, north side of Mount Vernon Square, New York Avenue, Bladensburg Road, current MD 450
 * US 50 Alternate - 23rd Street, Independence Avenue, 2nd Street?, Maryland Avenue (both ways around Stanton Square), Bladensburg Road (not on USGS)
 * US 240 - (beginning at the Ellipse?) E Street, 17th Street, Connecticut Avenue, Massachusetts Avenue, Wisconsin Avenue
 * US 240 Alternate - Connecticut Avenue (ended where?)
 * DC 4/DC 5 - (beginning at the Ellipse?) East Executive Avenue, Alexander Hamilton Place, Pennsylvania Avenue, Constitution Avenue, 2nd Street, Pennsylvania Avenue (shown as using E Street from the Ellipse to Pennsylvania Avenue on RMcN)
 * DC 4 - Pennsylvania Avenue, Alabama Avenue
 * DC 5 - Branch Avenue
 * DC 193 - (beginning at ?) Tilden Street, Connecticut Avenue (not on USGS)
 * DC 396 - (beginning at US 240) Massachusetts Avenue (not on USGS)


 * Current
 * US 1 - Jefferson Davis Highway, 14th Street Bridges, [14th Street, Constitution Avenue, 6th Street](Southwest Freeway, 9th Street, L Street), 6th Street, Rhode Island Avenue
 * US 1 Alternate - [New York Avenue](L Street), New York Avenue, Bladensburg Road
 * US 29 - Lee Highway, Key Bridge, Whitehurst Freeway, K Street, 11th Street, Rhode Island Avenue, 7th Street, Georgia Avenue
 * US 50 - Arlington Boulevard, Roosevelt Bridge, Constitution Avenue, [Constitution Avenue, 6th Street, New York Avenue](9th Street, L Street), New York Avenue