sentences:  The northern terminus is at US 1 in Kittery.Between its termini, US 1 Bypass intersects Interstate 95, U.S. Route 4, New Hampshire Route 16, and the Spaulding Turnpike in Portsmouth, as well as State Route 103 in Kittery.The bypass crosses the Piscataqua River on the 1940 Sarah Mildred Long Bridge, a lift bridge maintained by the Maine-New Hampshire Interstate Bridge Authority.