Route 122 is a numbered State Highway running 14.2mi in Rhode Island.Route descriptionRoute 122 takes the following route through the State:Pawtucket: 1.6mi; U.S. 1 to Central Falls city lineMain Street and Lonsdale AvenueLonsdale AvenueLonsdale AvenueMendon RoadMendon Road, Cumberland Hill Road, Hamlet Avenue, Court Street, (Main Street, Arnold Street), Arnold Street, Railroad Street and Harris AvenueHistoryRoute 122 used to extend south along US 1 into Providence then along Randall Street to end at Charles Street (present-day Route 246).