The RimmonRoad section of Route 313 in Seymour and Woodbridge was established as the Rimmon Falls Turnpike in 1802; the turnpike was operational until at least 1838. In 1936, the Woodbridge portion of the turnpike was taken over by the state as SR 563. In the 1962 Route Reclassification Act, River Street in Seymour was designated as SR 728, the Broad Street bridge was designated as SR 713, and SR 563 was extendednorthwest along Maple Street. These three unsigned state roads were combined into Route 313 in 1963 and has had no major changes since.