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The U.S. 61 Bonnet Carré Spillway Bridge is a twin concrete trestle bridge in the U.S. state of Louisiana. It has a total length of 6,006.0 feet (1,830.6 m; 1.13750 mi). The bridge carries U.S. Route 61 (Airline Highway) over the Bonnet Carré Spillway in St. Charles Parish. The original bridge opene
d in 1935 serving four narrow lanes of traffic; however, due to frequent traffic congestion and accidents, a parallel span opened in 1984. The original span currently serves eastbound (towards New Orleans) traffic, while the newer span serves westbound (towards Baton Rouge) traffic.
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