U.S. Route 302 , a major travel route and scenic highway between Maine and Vermont , has its eastern terminus in Portland .
Portland is accessible from I - 95 ( the Maine Turnpike ) , I - 295 , and US 1 .
U.S. Route 302 , a major travel route and scenic highway between Maine and Vermont , has Portland 's eastern terminus Portland Portland .
Portland is accessible from I - 95 ( the Maine Turnpike ) , I - 295 , and US 1 .