Interstate 55 in Louisiana
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Interstate 55 is a part of the Interstate Highway System that spans 964.25 miles from LaPlace, Louisiana, to Chicago, Illinois. Within the state of Louisiana, the highway travels 66 miles from the nat
The Manchac Swamp Bridge, which carries I-55 and US 51 over the Manchac Swamp. The grade-level Old US 51 is to the right (east).
Manchac Swamp Bridge
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The Manchac Swamp Bridge is a twin concrete trestle bridge near Manchac in the U.S. state of Louisiana. It carries Interstate 55 and U.S. Route 51 over the Manchac Swamp in Louisiana and represents a
Interstate 55 in Louisiana
…I-55 was opened in several stages beginning in 1960 with a bypass of Ponchatoula and Hammond. The southern 23 miles (37 km) of I-55, consisting of a twin-span viaduct through the Manchac swamp, was completed in 1979 and is one of the longest bridges in the world. From the south, I-55 begins at an interchange with I-10 (exit 210) at the northern…
Manchac Bridge