U.S. Route 40 | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
National Road Victory Highway |
||||||||||||||||
Route information | ||||||||||||||||
Length: | 2,285.74 mi (3,678.54 km) | |||||||||||||||
Existed: | 1926 – present | |||||||||||||||
Major junctions | ||||||||||||||||
West end: | I‑80 / US 189 in Silver Summit, UT | |||||||||||||||
|
||||||||||||||||
East end: | US 322 in Atlantic City, NJ | |||||||||||||||
Location | ||||||||||||||||
States: | Utah, Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Pennsylvania, Maryland, Delaware, New Jersey | |||||||||||||||
Highway system | ||||||||||||||||
|
U.S. Route 40 (US 40) is an east–west United States Highway. As with most routes whose numbers end in a zero, US 40 once traversed the entire United States. It is one of the original 1926 U.S. Highways, and its first termini were San Francisco, California, and Atlantic City, New Jersey. In the western United States, US 40 was functionally replaced by Interstate 80 (I-80), resulting in the route being truncated multiple times. US 40 currently ends at a junction with I-80 in Silver Summit, Utah, just outside Park City.
Starting at its western terminus in Utah, US 40 crosses a total of 12 states, including Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Pennsylvania, Maryland, Delaware, and New Jersey. Three former and four current state capitals lie along the route. For much of its route, US 40 runs parallel to or concurrently with several major Interstate Highways: Interstate 70 from Colorado to Washington, Pennsylvania; and again from Hancock, Maryland to Baltimore, Maryland; Interstate 64 in parts of Missouri and Illinois; Interstate 68 along the Maryland Panhandle; and Interstate 95 from Baltimore to New Castle, Delaware.