U.S. Federal Route 1 is a north-south highway in Norfolk County. It runs from the Bristol/Norfolk County Line, near Plainville, to the Suffolk/Norfolk County Line, near Boston. U.S. Rt. 1 passes through the following towns in Norfolk County. Plainville South Walpole East Walpole Islington Ponkapoag Braintree Quincy East Milton U.S. Rt. 1 is multi-plexed in Norfolk County. Interstate 95, near Ponkapoag.