Interstate 95 (I-95) is the most significant interstate in Delaware, running north-south and connecting Wilmington to Philadelphia in the north and Baltimore in the south. It includes key interchanges with I-495, I-295, and DE-1. Interstate 295 (I-295) forms a bypass around Wilmington and crosses the Delaware Memorial Bridge into New Jersey, linking to DE-9, U.S. 13, and U.S. 40. Interstate 495 (I-495) serves as a bypass east of Wilmington, providing a faster route for trucks and through traffic and connecting to U.S. 13 and DE-9.
Among the major U.S. and state routes, U.S. Route 13 (US-13) is one of the busiest, running the length of the state from the Maryland border to the Delaware Memorial Bridge and passing through key cities such as Seaford, Dover, and Wilmington. U.S. Route 40 (US-40) runs east-west from the Maryland border to the Delaware Memorial Bridge, providing access to Bear and New Castle. U.S. Route 113 (US-113) runs parallel to US-13 in central and southern Delaware, serving towns like Milford and Georgetown and acting as a primary route for beach traffic.
Delaware Route 1 (DE-1) is a vital north-south expressway that connects I-95 near Wilmington to Delaware’s beach towns. It bypasses major towns and offers faster travel than U.S. 13, making it essential for tourists heading to coastal areas. Delaware Route 9 (DE-9) offers a scenic route along the Delaware River, connecting New Castle to Dover and passing through historic towns and wildlife refuges. Delaware Route 141 (DE-141) functions as a beltway around Wilmington, linking I-95, I-295, and DE-2, and providing access to business centers. Delaware Route 404 (DE-404) serves as an east-west corridor from Maryland to Delaware’s beaches, passing through towns like Bridgeville, Georgetown, and Rehoboth Beach.
For more information please visit the Delaware Department of Transportation and their interactive maps.