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The Huey P. Long Bridge, [5] located in Jefferson Parish, Louisiana, is a cantilevered steel through-truss bridge that carries a two-track railroad line over the Mississippi River at mile 106.1, with three lanes of US 90 on each side of the central tracks. It is several kilometers upriver from the city of New Orleans.
Gerald Desmond Bridge: Back Channel, Port of Long Beach: 1968: California: Green River Gorge Bridge [18] Green River: 1915 Washington: 153 ft (46.6 m) Huey P. Long Bridge (Jefferson Parish) Mississippi River: 1935: Louisiana: Walt Whitman Bridge: Delaware River: 1957: Pennsylvania / New Jersey: 152 ft (46.3 m) Ambassador Bridge: Detroit River ...
Although the bridge is named after former Louisiana governors Huey P. Long and Oscar K. Allen, it is known locally in the Baton Rouge Area as "the old bridge". [3] It was the only bridge across the Mississippi in Baton Rouge from its opening until April 1968, when the Horace Wilkinson Bridge ("the new bridge") carrying Interstate 10 opened.
Horace Wilkinson Bridge, Baton Rouge; Huey P. Long Bridge, Baton Rouge – carries four lanes of U.S. Route 190 across the Mississippi River. Two railroad trestles. Huey P. Long Bridge, Jefferson Parish – one of the longest railroad bridges in the US: 7 km (4.3 mi)
The route became LA 611-10 in the 1955 Louisiana Highway renumbering and assumed its present number in 1972. The extension of Clearview Parkway, complete with railroad overpass, south from Airline Highway to the Huey P. Long Bridge at Jefferson Highway, opened in June 1973 and was designated as South Clearview Parkway.
The bridge was designed by Modjeski and Masters, the firm responsible for the earlier Huey P. Long Bridge upriver. When opened to traffic in April 1958, the Greater New Orleans Bridge was declared as having the longest cantilever structure in the United States and third longest in the world, its central span totaling 1,575 feet (480 m).
After passing through Harahan, LA 48 shortly merges with US 90 at the east bank base of the Huey P. Long Bridge and LA 3152 (South Clearview Parkway) in Elmwood, becoming a six-lane divided highway through the concurrency. LA 48 ends at Central Avenue in Jefferson, and US 90 continues along Jefferson Highway toward New Orleans.
1937–1941: The Huey P. Long Bridge was opened in December 1935. US 90 was re-routed over the bridge, following Jefferson Highway into Orleans Parish, after widening of that thoroughfare to four lanes was completed in 1937. (LA 2 remained on the old alignment until the 1955 renumbering of Louisiana highways.)