This Route 131 was then renumbered in 1935 to Route 199, and the number 131 was then assigned to SR 874 (Quinebaug Road) to match the existing route number in Massachusetts.
•
After crossing under I-84, Route 131 meets the former northern end of Route 15, which was a continuation of Connecticut Route 15.
Massachusetts | Massachusetts Institute of Technology | Cambridge, Massachusetts | Massachusetts House of Representatives | Massachusetts General Hospital | Lowell, Massachusetts | Worcester, Massachusetts | University of Massachusetts Amherst | Andover, Massachusetts | Springfield, Massachusetts | Salem, Massachusetts | Medford, Massachusetts | Brookline, Massachusetts | U.S. Route 66 | Newton, Massachusetts | U.S. Route 1 | Williamstown, Massachusetts | Somerville, Massachusetts | Lawrence, Massachusetts | U.S. Route 6 | U.S. Route 101 | Newburyport, Massachusetts | Middlesex County, Massachusetts | Lexington, Massachusetts | Waltham, Massachusetts | Route 66 | Governor of Massachusetts | U.S. Route 30 | Provincetown, Massachusetts | Pittsfield, Massachusetts |