Interstate 510

Interstate 510 (I-510) is a short spur route of I-10 within eastern New Orleans, Louisiana, United States. It runs south from I-10, intersects with U.S. Route 90, and ends at the Almonaster Boulevard interchange, near the NASA Michoud Assembly Facility. From this point, the highway continues south over the Gulf Intracoastal Waterway / Mississippi River Gulf Outlet on the Green Bridge.

For the former route in Phoenix, Arizona, see Arizona State Route 51.

Interstate 510 marker

Interstate 510

I-510 highlighted in red
Route information
Auxiliary route of I-10
Maintained by Louisiana DOTD
Length3.04 mi (4.89 km)
Existed1992[1]–present
NHSEntire route
Major junctions
South end LA 47 in New Orleans
North end I-10 / LA 47 in New Orleans
Location
CountryUnited States
StateLouisiana
ParishesOrleans
Highway system
  • Louisiana State Highway System
← LA 509→ LA 510

The Interstate spur route is a portion of Paris Road, a New Orleans metropolitan area roadway stretching from the Mississippi River to Lake Pontchartrain dating back to the 19th century. The portion designated I-510 is entirely within the Ninth Ward of New Orleans, though the area the highway runs through is locally known as New Orleans East.

Route description
Northern terminus from I-10 eastbound.

I-510 runs concurrently with Louisiana Highway 47 (LA 47) for its entire routing. The spur serves the NASA facility, the St. Bernard Parish seat of Chalmette (though the interstate portion ends a few miles north of the city, the highway continues as Paris Road), and the former Six Flags New Orleans.

I-510 exits are numbered from the parent route to the remote terminus, as is normal for spur interstates.[2]

History

What would eventually become I-510 was originally proposed in 1970 as a replacement for Paris Road, but was subsequently delayed due to environmental concerns.[3] By 1981, an environmental impact statement was completed, and construction on the spur would commence in 1985.[3] The $87 million project saw its official ribbon-cutting on November 13, 1992.[1] I-510 was once planned as part of a longer I-410 that would have also incorporated I-310 around the southern section of the New Orleans metropolitan area.[4]

Exit list

The entire highway is in New Orleans, Orleans Parish.

mikmExitDestinationsNotes
3.044.89-
 LA 47 south		Southern terminus
2.914.682CAlmonaster Boulevard, To Old Gentilly Road
2.283.672A US 90 (Chef Menteur Highway)Signed as exits 2B (east) and 2A (west) northbound
1.151.851BLake Forest Boulevard
0.000.001A I-10 – New Orleans, SlidellSouthbound exit to I-10 west unsigned; I-10 exit 246A
-
 LA 47 north – Little Woods		Northern terminus; northbound exit and southbound entrance; I-10 exit 246B
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. Turni, Karen (November 14, 1992). "I-510 opening links St. Bernard, I-10". New Orleans Times-Picayune. p. B1.
  2. "Manual on Uniform Traffic Control Devices, 2009 Edition". FHWA. Retrieved 1 April 2011.
  3. Turni, Karen (October 13, 1992). "I-510 link is nearly complete after 7 years of construction". New Orleans Times-Picayune. p. A1.
  4. Weingroff, Richard F. (November 18, 2015). "The Battles of New Orleans: Vieux Carré Riverfront Expressway (I-310)". Highway History. Federal Highway Administration. Retrieved February 9, 2016.
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