U.S. Route 13 (
US 13) is a
U.S. highway running from
Fayetteville, North Carolina north to
Morrisville, Pennsylvania. In the
U.S. state of
Delaware, the route runs for . It traverses the entire length of the state from the
Maryland state line in
Delmar,
Sussex County to the
Pennsylvania state line in
Claymont,
New Castle County. US 13 connects many important cities and towns in Delaware, including
Seaford,
Dover, and
Wilmington. The entire length of US 13 in Delaware is a multilane
divided highway with the exceptions of the segment through Wilmington and parts of Philadelphia Pike in Claymont. Between the Maryland border and Dover, US 13 serves as one of the main north-south routes across the
Delmarva Peninsula. From Dover north to the Wilmington area, the route is followed by the limited-access
Delaware Route 1 (DE 1) toll road, which crosses the route several times and has multiple interchanges with it. US 13 bypasses downtown Wilmington to the east before it heads northeast of the city parallel to
Interstate 495 (I-495) and the
Delaware River to Claymont.