 The routes continue through more areas of forests and residences, with some businesses around, until Connecticut Route 10 ends at the Massachusetts state line and US 202 continues north, into the town of Southwick, Hampden County.A continuation of Connecticut Route 10, Massachusetts Route 10, begins at the state line duplexed with US 202, and crosses Massachusetts, which in turn continues into New Hampshire as New Hampshire Route 10, as part of the legacy of 1922-designated multi-state New England Route 10.The Southington section of Route 10 was dedicated on Aug. 6, 1960 (and rededicated on Oct. 6, 2007) as the Louis G. Tolles Memorial Highway in honor of the late Southington native and leader of the Connecticut State Grange (1885–1956).