Louisiana Highway 18
Length:	80.12 mi (128.91 km)
Formed:	1955 renumbering
West end:	LA 1 in Donaldsonville
Major junctions:	LA 20 in North Vacherie US 90 in Bridge City LA 45 in Marrero BUS US 90 in Gretna
East end:	LA 23 in Gretna
Highways in Louisiana < LA 17 LA 19 >

Louisiana Highway 18 (LA 18) is a state highway in Louisiana. It runs from east to west, parallel to the west bank of the Mississippi River, running from Donaldsonville to Gretna. It spans a total of about 80.12 miles. In the more rural parts of LA 18's span, it is commonly referred to as River Road, but it beceomes 4th Street once it enters Westwego. Image File history File links LA_18. ... This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... A mile is the name of a unit of length, usually used to measure distance, in a number of different systems, including English units, Imperial units, and United States customary units. ... km redirects here. ... Donaldsonville is a town located in Ascension Parish, Louisiana, on the West Bank of the Mississippi River. ... North Vacherie is a census-designated place located in St. ... Image File history File links US_90. ... United States Highway 90 is an east-west United States highway. ... Bridge City is a census-designated place located in Jefferson Parish, Louisiana. ... Image File history File links LA_45. ... Marrero is a census-designated place and town located in Jefferson Parish, Louisiana. ... Image File history File links Business_plate. ... Image File history File links US_90. ... U.S. Highway 90 Business (officially U.S. Highway 90-Z[1]) is a business route of U.S. Highway 90 in and near New Orleans, Louisiana, United States. ... Gretna is a city located in Jefferson Parish, Louisiana. ... Image File history File links LA_23. ... Gretna is a city located in Jefferson Parish, Louisiana. ... // List of Louisiana Highways List of Interstate Highways Interstate 10 Interstate 12 Interstate 20 Interstate 49 Interstate 55 Interstate 59 Interstate 110 Interstate 210 Interstate 220 Interstate 310 Interstate 410 (cancelled) Interstate 420 (cancelled) Interstate 510 Interstate 610 Interstate 910 (only designated by the Federal Highway Administration) List of U... This article is about the idea of state highways State Highway, and is more formally known as Route 139 State highway, and state route are terms that usually apply to numbered highways that are primarily administered and financed by a state government in countries that are divided into states. ... Official language(s) English and French Capital Baton Rouge Largest city New Orleans at last census; probably Baton Rouge since Hurricane Katrina Area  Ranked 31st  - Total 51,885 sq mi (134,382 km²)  - Width 130 miles (210 km)  - Length 379 miles (610 km)  - % water 16  - Latitude 29°N to 33... The Mississippi River, derived from the old Ojibwe word misi-ziibi meaning great river (gichi-ziibi big river at its headwaters), is the second-longest river in the United States; the longest is the Missouri River, which flows into the Mississippi. ... Gretna is a city located in Jefferson Parish, Louisiana. ...

Route Description

LA 18 begins as an undivided, two lane road in downtown Donaldsonville as Bayou Road, which runs parallel to the Mississippi River. It intersects with the Sunshine Bridge (LA 70) east of Donaldsonville, the Veterans Memorial Bridge (LA 3213) south of Gramercy, and Interstate 310 near Luling as it continues downriver. At Bridge City, LA 18 shortly merges with U.S. Highway 90 but continues its eastward span while U.S. 90 crosses the Mississippi River via the Huey P. Long Bridge. When LA 18 enters Westwego, LA 18 becomes 4th Street but still continues alongside the river. In Gretna, LA 18 turns south, away from the river, onto Lafayette Street and ends at the intersection of Lafayette St. and the Westbank Expressway. Donaldsonville is a town located in Ascension Parish, Louisiana, on the West Bank of the Mississippi River. ... The Sunshine Bridge is a cantilever bridge over the Mississippi River in St. ... Gramercy is a town located in St. ... Interstate 310 (abbreviated I-310) is a short spur route of Interstate 10 near New Orleans, Louisiana. ... Luling is a census-designated place located in St. ... Bridge City is a census-designated place located in Jefferson Parish, Louisiana. ... United States Highway 90 is an east-west United States highway. ... The Huey P. Long Bridge is located in New Orleans, Louisiana. ... Gretna is a city located in Jefferson Parish, Louisiana. ... The Westbank Expressway is an elevated 6 lane highway carrying Business US 90 through the West Jefferson Parish in the New Orleans, Louisiana metro area. ...

References

Louisiana State Highway Log