 After ten years of planning studies, the route received preliminary approval from the MassDPW in 1957, and construction began in 1958; the entire route was designated as Route 25 in 1962, with Route 28 instead being aligned on local roads.The portion of the freeway between Route 24 in Raynham and I-195 in Wareham was completed in 1967.In 1969, MassDPW extended the freeway eastward to US 6 in Wareham.