| United States Numbered Highways in Washington, D.C. | |
|---|---|
Highway marker for U.S. Highway 1 | |
| System information | |
| Formed | November 11, 1926 [1] |
| Highway names | |
| US Highways | US Highway X (US X) |
| Special Routes: | Alternate U.S. Highway X (ALT US X) Business U.S. Highway X (BUS US X) |
| System links | |
In Washington, D.C., United States Numbered Highways comprise 10 current and former highways.
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
 US 1 | 7.0 | 11.3 | 14th Street Bridges in Arlington, VA | Eastern Avenue in Mt. Rainier, MD | 1926 | current | 14th Street Bridges, 14th St SW/NW, Constitution Ave NW, 6th St NW (northbound) / 9th St NW (southbound), Rhode Island Ave NW/NE | |
 US 1 Alt. | 6.8 | 10.9 | Pennsylvania Ave / 6th St NW (US 1) in Judiciary Square | Eastern Ave in Brentwood, MD | 1926 | current | Pennsylvania Ave NW, Constitution Ave NW/NE, Maryland Ave NE, Bladensburg Rd NE | |
 US 1 Byp. | — | — | — | — | — | — | Current US 1 Alt. was known as US 1 Byp. in the 1940s; was cosigned with U.S. Route 50 Alt. | |
 US 29 | 8.6 | 13.8 | Francis Scott Key Bridge (Washington) in Arlington, VA | Eastern Ave in Silver Spring, MD | 1926 | current | Francis Scott Key Bridge, Whitehurst Freeway, K St NW, 11th St NW, Rhode Island Ave NW, 7th St NW, Georgia Ave NW | |
 US 50 | 7.7 | 12.4 | Theodore Roosevelt Bridge in Arlington, VA | John Hanson Highway near Cheverly, MD | 1926 | current | Theodore Roosevelt Bridge, Constitution Ave NW, 6th St NW (northbound) / 9th and L Sts NW (southbound), New York Ave NW/NE | |
| US 50 Alt. | — | — | — | — | — | — | ||
| US 50 Byp. | — | — | — | — | — | — | ||
 US 211 | — | — | — | — | 1926 | 1980 | US 211's eastern terminus was truncated to Warrenton, Virginia, eliminating the overlap with US-29. | |
 US 240 | — | — | — | — | 1926 | 1972 | US 240 began at the intersection of Pennsylvania Avenue and 14th Street near the White House. US 240 followed Massachusetts Ave to Wisconsin Ave. | |
 US 240 Alt. | — | — | — | — | — | — | US 240 Alt. ran along Connecticut Avenue with its southern end at the intersection with US 240 at Dupont Circle. [2] [3] | |
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U.S. Route 32 (US 32) was a U.S. Highway from 1926 to 1934, which ran along present-day:
U.S. Route 830 (US 830) was a U.S. Highway in Washington, which ran between a junction with US 97 near the city of Maryhill and a junction with US 101 near Ilwaco. The route still (mostly) exists; however it is currently signed as State Route 14 (SR 14) between Maryhill and Vancouver, Interstate 5 (I-5) between Vancouver and Longview, SR 432 for a short stretch through Longview; and SR 4 from Longview to the western terminus near Ilwaco. The number suggests that US 830 was an auxiliary route of US 30. While US 30 and US 830 never connected, they ran parallel to each other for the entire length of US 830. This route ran on the northern bank of the Columbia River whereas US 30 runs on the river's southern bank, through Oregon.
Delaware Route 202 (DE 202), also known as Concord Avenue, is a short state highway mostly within Wilmington, Delaware. It runs from U.S. Route 13 Business north to a modified cloverleaf interchange with Interstate 95 (I-95) and US 202 just beyond the northern city limits. North of the interchange, the route becomes US 202 northbound, also known as the Concord Pike. The road is two lanes and undivided for most of its length except for the part just south of the I-95 interchange, which is four lanes and divided. DE 202 was a part of US 202 until that highway was truncated to the I-95 interchange in 1970. DE 202 was designated by 1981.
