Massachusetts State Route 1A is a north-south highway in Southern Norfolk County. It goes from the Bristol/Norfolk County Line, near Plainville to Interstate 95/U.S. Rt. 1/Massachusetts State Route 128, near Islington. MA St Rt 1A passes through the following towns in Norfolk County. Plainville Wampum Corner Wrentham Walpole Norwood Ellis Islington MA St Rt 1A is not multi-plexed in Norfolk County. MA St Rt 1A crosses the following highways in Norfolk County. Massachusetts State Route 106, at Plainville. Interstate 495, near Wampum Corner. Massachusetts State Route 121, at Wampum Corner. Massachusetts State Route 140, at Wrentha,. Massachusetts State Route 115, near South Walpole. Massachusetts State Route 27, near Walpole. Interstate 95, near Dedham. (NO Interchange) Massachusetts State Route 128, near Dedham. (NO Interchange) Interstate 95, near Dedham. U.S. Rt. 1, near Dedham. Massachusetts State Route 128, near Dedham.
