Route 78 (Rhode Island–Connecticut)
…Westerly, Rhode Island. The route is about 4.6 miles (7.4 km) long and begins at Connecticut Route 2 in Stonington, crossing into Rhode Island at the Pawcatuck River, where it continues to U.S. Route 1 in Westerly. The route was constructed in 1979, after a sixteen-year delay. The designation was to become part of…