the northwest as it enters another rural area. It passes by the isolated Madrid–Waddington Central School just before crossing into the town of Waddington. The rural surroundings continue to the village of Waddington, where the amount of development along the route increases after the highway crosses Sucker Brook south of the village center. NY 345 ends shortly afterward at an intersection with NY 37 in the village center near the southern bank of the St. Lawrence River. History When NY 345 was assigned as part of the 1930 renumbering of state highways in New York, it began at US 11 in Canton. From there, NY 345 followed modern County Route 27 (CR 27) and CR 14 north to Madrid, where it joined its modern alignment north to Waddington. At the same time, the current alignment of NY 345 from modern NY 310 in Madrid to Potsdam was designated as the southern half of NY 56A. The short piece of Bridge Street not part of NY 56A in Madrid was a state-maintained reference route. On April 10, 1980, the NY 56A designation was deleted. The portion of former NY 56A from Madrid to Potsdam, as well as the state-maintained Bridge Street connector, became part of a rerouted NY 345 on September 1, 1982, as a result of a highway maintenance swap between the state of New York and St. Lawrence County. As part of the swap, the pre-1982 routing of NY 345 between the Canton village line and Bridge Street in Madrid was turned over to the county while the portion of former NY 345 within Canton was transferred to the village. Major intersections See also References External links 345 Transportation in St. Lawrence County, New York