File:Approaching Johnstown Bridge to U.S.A., Ontario Highway 401 Between Brockville and Cornwall, Ontario (29441754224).jpg

The Ogdensburg–Prescott International Bridge (also known as the St. Lawrence Bridge and the Seaway Skyway), is a suspension bridge connecting Ogdensburg, New York in the United States to Johnstown, Ontario (a few kilometres east of Prescott) in Canada. Designed by Modjeski & Masters and completed in 1960, it has 6 spans and a main span of 350.75 metres (1,150.8 ft) totaling 2.4 kilometres (1.5 mi) across the Saint Lawrence River and Saint Lawrence Seaway. The bridge is owned and operated by the Ogdensburg Bridge and Port Authority, which also owns and operates Ogdensburg International Airport, the Port of Ogdensburg-Marine Terminal Facility, Commerce Park, the Port of Waddington, a medium-heavy industrial park and two short line railroads. The Ogdensburg Bridge and Port Authority is a New York State public-benefit corporation.

The Ogdensburg–Prescott Border Crossing connects the cities of Ogdensburg, New York and Johnstown, Ontario at the Ogdensburg–Prescott International Bridge. The US border inspection station was built in 1960. The inspection canopy was replaced, and the building significantly upgraded and expanded in 2004. The Canada border station was replaced in 2012.

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