end of US 302 was formerly at Longfellow Square in Portland, Maine. The highway follows a 19th-century stagecoach road from Portland through Windham to Bridgton. The portion from Windham to Bridgton was built about 1785. Stagecoach service began in 1803, and the route became a post road for the United States Postal Service in 1814. Transportation over this route was augmented by the Cumberland and Oxford Canal from 1832 to 1932, and by the Bridgton and Saco River Railroad from 1883 to 1941. The highway through Crawford Notch follows the Tenth New Hampshire Turnpike built in 1803 and parallels the Maine Central Railroad Mountain Division built in 1877. The highway eliminated railway passenger travel over the route from Portland by 1958, and railroad freight service through Crawford Notch was discontinued in 1983. From 1922 until 1935, much of what is now US 302 was a part of the New England road marking system, designated as Route 18, from Portland, Maine, northwest to Littleton, New Hampshire, roughly . From Littleton west to Montpelier in Vermont, US 302 and Route 18 took different paths. NE-18 took a more northerly route, along present-day New Hampshire Route 18 and Vermont Route 18 to St. Johnsbury, Vermont (closely paralleling I-93), then along present-day US 2 up to Montpelier. Current US 302 runs along a more southerly route using other former sections of New England Interstate Routes. From Littleton, it went along former Route 10 to Woodsville, New Hampshire, then along former Route 25 to Montpelier. The entire Maine segment of US 302 was formerly designated State Route 18, a route that was established in 1926 until being deleted in 1935 by US 302. Major intersections See also Special routes U.S. Route 302 Business (Bartlett, New Hampshire), a loop connecting US 302 to Lower Bartlett. It is locally known as the Intervale Resort Loop and is signed only as New Hampshire Route 16A. Related state highways New Hampshire Route 18 Vermont Route 18 References External links Endpoints of U.S. Highway 302 02-3 02-3 02-3 02-3 3