Interstate 95 and the Merritt Parkway lead through Norwalk, and there are several exits within the Norwalk city limits, and are the major thoroughfare through the city. U.S. Route 1 goes through the center of the city, mostly following local streets. The major north–south corridor in Norwalk is U.S. Route 7, which is an expressway throughout most of the route in the city. The expressway section ends at Grist Mill Road in Norwalk from where Route 7 resumes northbound along Main Ave. Other state routes include Route 53, Route 123, and Route 136.