Sx federal highways traverse the state of Delaware at present. Of these, four are original. U.S. 122 existed for a short while between 1926 and 1938 along the Concord Turnpike, Concord Avenue, and Washington Street in Wilmington. U.S. 9 saw extension into the First State in the early 1970s over Delaware 28. The route previously ended in Cape May, New Jersey. Recent relocations of U.S. 301 and the truncation of U.S. 113 in 2004 round out some of the changes to the U.S. highway system in the Diamond State.
||south of Middletown
Mileage Source: Deldot
* - estimate after 2004 truncation
Delaware U.S. Highways Other Highway Sites