U.S. Federal Route 302 is an east-west highway in Oxford County. It runs just under two miles in the county. This highway runs from the New Hampshire/Maine State Line, near Newbury, New Hampshire, to the Oxford/Cumberland County Line. U.S. Rt. 302 passes through the following town in Oxford County. Oxford U.S. Rt. 302 is multi-plexed in Oxford County. Maine State Route 113, at Fryeburg. Maine State Route 5, at Fryeburg.