 It then crosses the northeast corner of Thomaston into Harwinton and loops westward briefly back and forth across the town line back into Thomaston and again into Harwinton.In Harwinton, it continues north-northwest for another until it ends at an intersection with Route 118 west of the town center.Route 222 was commissioned in 1963, partially from parts of the pre-expressway alignment of Route 8 in Thomaston (North Main Street) and former SR 722 (Hill Road) in Harwinton.