Highway 401

Southwestern Ontario

Highway 401 begins at the Gordie Howe International Bridge, which crosses the Canada–United States border over the Detroit River and continues through a connection through Delray to I-75. Leaving the Canadian Port of Entry at the west end of the E. C. Row Expressway, Highway 401 is sandwiched between the E. C. Row's opposing carriageways for a short distance. Highway 401 then changes to a southeast direction as it descends into a trench and runs alongside Highway 3 (Huron Church Road and Talbot Road). This below-grade section of the highway has 11 tunnels to cross underneath surface streets (including those carrying the Highway 3 routing). After passing under Howard Avenue and the ramps to Talbot Road, the highway then curves northeast and ascends back to the surface. At the split with Dougall Parkway (former Highway 3B), which links to the Detroit–Windsor Tunnel, the highway turns east and exits Windsor. From here, Highway 401 mostly parallels the former route of Highway 98 from Windsor to Tilbury.