Blue Water Bridge
Record: 1862 m
Height Record: 71 m
Main Span Record: 281 m
Clearance below Record: 155 m
The Blue Water Bridge is a twin-span international bridge across the St. Clair River that links Port Huron, Michigan, United States, and Sarnia, Ontario, Canada. The Blue Water Bridge connects Highway 402 in Ontario with both Interstate 69 (I-69) and Interstate 94 (I-94) in Michigan.
Description
The original span is a cantilever truss bridge with a total length of 6,178 feet (1,883 m) and a main span of 871 feet (265 m). The second, newer span is a continuous bowstring arch bridge with a total length of 6,109 feet (1,862 m) and a main span of 922 feet (281 m).
The Blue Water Bridges are jointly owned and maintained by Canada and the United States: Federal Bridge Corporation, a Crown corporation of the Government of Canada, is in charge of the Canadian side, while the Michigan Department of Transportation (MDOT) is in charge of the US side. A toll is charged to cross the bridges, which is used to pay for maintenance and operations.
Together, the two bridges connect Chicago and the Midwestern United States with Toronto and the Northeastern United States, one of the four shortest routes of land travel between the US Midwest and Northeast. They are the second-busiest commercial crossing on the Canada–United States border, after the Ambassador Bridge at Detroit-Windsor, and the fourth-busiest overall international crossing in Ontario in terms of total number of vehicles at 4.7 million annually as of 2011. In Canada, they are the third-busiest bridges after the Champlain Bridge in Montreal and the Ambassador Bridge.
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