Blue Water Bridge, Twin steel bridge in Port Huron, United States.
Blue Water Bridge connects Port Huron in Michigan with Point Edward in Ontario through two parallel steel structures stretching across 1900 meters. Each of the twin spans uses a combination of different construction techniques, with arches and truss elements visible throughout.
The original bridge opened in 1938 to create a permanent connection between the two countries. The second span was added in 1997 when growing trade traffic required more lanes.
The name Blue Water refers to the clear color of the St. Clair River below, which locals have used as a landmark for generations. Truckers and regular commuters recognize the twin spans as part of their daily routine between the two countries.
Travelers cross the river on multilane roadways, with tolls collected on both spans. On the American side, Interstate 69 and Interstate 94 lead to the border, while Highway 402 continues on the Canadian side.
The two spans use different construction methods: the older one employs a continuous arch truss, while the newer relies on a cantilever design. Both reach a height that allows cargo ships to pass beneath on the river.
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