Home		Route 25 Termini The western terminus of SR 25 is at the New Hampshire border in Porter. Maine state line sign. (Douglas Kerr, 9/10/05) New Hampshire state line sign. (Douglas Kerr, 9/10/05) The eastern terminus of SR 25 is at US 1 in Portland, at the corner of Park Avenue and Deering Avenue. The intersection as seen from eastbound Park Avenue. (US 1 north) (Douglas Kerr, 6/28/03) ...and from westbound Park Avenue. (US 1 south) (Dan Bryant, 2/16/05) Same thing, this time with the sign assembly! (Dan Bryant, 4/7/07) The END shield, approaching the intersection. (Dan Bryant, 2/16/05) View from westbound Deering Avenue, looking across US 1 at the route's beginning. (Dan Bryant, 4/7/07)