Interstate 10 in Louisiana

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Interstate 10

Length:

274.42^[1] mi (441.64 km)

Formed:

1939 (planned); 1957 (numbered);
ca. 1977 (completed)

West end:

I-10 near Orange, TX

Major
junctions:

I-49 in Lafayette

I-12 in Baton Rouge

I-55 near LaPlace

I-12/I-59 near Slidell

East end:

I-10 near Pearlington, MS

Highways in Louisiana
< LA 9		LA 10 >

Interstate 10, a major transcontinental Interstate Highway in the Southern U.S., runs across the southern part of the U.S. state of Louisiana. It passes through New Orleans and Baton Rouge as well as through smaller cities such as Lake Charles and Lafayette. It dips south of Lake Pontchartrain to serve New Orleans, while Interstate 12 provides a shortcut to the north of the lake for through traffic.

From Texas to Lafayette, I-10 parallels the older U.S. Highway 90 corridor. From Lafayette, the highway heads east-northeast toward Baton Rouge via the Atchafalaya Swamp Freeway, an 18.2-mile (nearly 30 km) bridge across the Atchafalaya River and its accompanying swamp. Between the two cities, I-10 parallels U.S. Highway 190, which runs from Opelousas to Baton Rouge.

In the Capital City, U.S. 190 continues east alongside Interstate 12 to Hammond and Slidell while I-10 turns southeastward and parallels U.S. Highway 61 (Airline Highway) to New Orleans. In the Crescent City, I-10 rejoins U.S. Highway 90 (and later U.S. Highway 11) as it heads toward Slidell. In Slidell, U.S. 11 continues northeastward toward Hattiesburg, Mississippi while I-10 and U.S. 90 turn eastward toward coastal Mississippi.

Major bridges on I-10 in Louisiana include the Sabine River bridge (ca. 1952), the Calcasieu River Bridge (1952), the Atchafalaya Swamp Freeway (1973), the Horace Wilkinson Bridge over the Mississippi River (1968), the Bonnet Carre Spillway (ca. 1972), the Industrial Canal Bridge (ca. 1960), the Twin Spans (ca. 1963), and the Pearl River bridge (ca. 1970).

1 Major cities
2 Auxiliary routes
3 History
4 Exit list
5 See also
6 References

[edit] Major cities

Bolded cities are officially-designated control cities for signs.^[2]

[edit] Auxiliary routes

Interstate 110 is a spur northward through downtown Baton Rouge toward the northern part of the city. It was not in the original plans, but was added in the 1960s to replace the cancelled Interstate 410.
Interstate 210 is a bypass around the south side of Lake Charles. It was added in September 1955.^[3]
Interstate 310 is a spur from I-10 west of New Orleans south to U.S. Highway 90 (future Interstate 49). It was part of a longer Interstate 410 from 1969 to 1977.^[4]
A previous Interstate 310 was added in 1964 and cancelled in 1969. It would have run from I-10 east of downtown New Orleans south and southwest through the French Quarter to the Greater New Orleans Bridge.^[4]
The first Interstate 410 was a northern bypass of Baton Rouge along the Airline Highway (U.S. Highway 61/190) corridor. It was added in September 1955^[3] and removed by the late 1960s.
The second Interstate 410 was defined in 1969 as a southern bypass of New Orleans, as a sort of replacement for the cancelled Interstate 310. The southern section of I-410 was cancelled in 1977, and the west and east legs became Interstate 310 and Interstate 510, respectively.^[4]
Interstate 510 is a spur from I-10 in eastern New Orleans south to the Paris Road Bridge over the Gulf Intracoastal Waterway/(Mississippi River-Gulf Outlet Canal). It was part of a longer Interstate 410 from 1969 to 1977.^[4]
Interstate 610 is a bypass for through traffic north of downtown New Orleans. It was added in September 1955.^[3]
Interstate 910 is a piece of future Interstate 49 from downtown New Orleans south and west to Marrero. The temporary designation was assigned by the Federal Highway Administration and American Association of State Highway Officials in 1999, but is not signed and has not been accepted by the Louisiana Department of Transportation and Development.

[edit] History

Interstate 10 eastbound passing over Lake Charles in Louisiana

By the beginning of planning for the Interstate Highway System in 1939 (then called the Interregional Highway System), the Houston-New Orleans-Mobile corridor was part of the system. Preliminary plans took it along U.S. Highway 90 all the way through Louisiana, serving Lake Charles and Lafayette but not Baton Rouge.^[5] By ca. 1943, it had been shifted to the north west of New Orleans, using the Louisiana Highway 12, U.S. Highway 190 and U.S. Highway 61 corridors, and serving Baton Rouge but not Lake Charles or Lafayette.^[6] The 1947 plan shifted it to roughly the current alignment, including the long stretch of new corridor across the Atchafalaya Swamp.^[7] The corridor was assigned the Interstate 10 designation in mid-1957.^[8]

Prior to the gaining of federal funding for the Interstate System in the late 1950s, a toll road - the Acadian Thruway - had been proposed between Lafayette and a point near Gramercy on the Airline Highway (U.S. Highway 61). This would have provided a shorter route than I-10, bypassing Baton Rouge to the south. The Gramercy Bridge was later built along its planned alignment, with Louisiana Highway 3125 connecting to Gramercy, but no road extends west from the bridge across the Atchafalaya Swamp to Lafayette.

Until around 1960, Interstates 10 and 59 would have split near the present I-510 interchange in eastern New Orleans.

Interstate 12, serving as a bypass of New Orleans around the north side of Lake Pontchartrain, was not added until October 17, 1957. At the time, I-10 and Interstate 59 split in eastern New Orleans, with I-59 following present I-10 and I-10 following the U.S. Highway 90 corridor into Mississippi, and so I-12 only ran to I-59 north of Slidell.^[9] By the mid-1960s, the routes had been realigned to their current configuration, with I-12 and I-59 both ending at I-10 near Slidell.^[10]

The Atchafalaya Swamp Freeway opened in March 1973.^[11]

[edit] Exit list

Parish	Location	Exit #	Destinations	Notes
Calcasieu		1	Sabine River Turnaround	westbound exit and eastbound entrance
		4	U.S. 90 East/To LA 109 - Toomey; Starks	U.S. 90 joins westbound and leaves eastbound
		7	LA 3063 - Vinton
		8	LA 108 - Vinton
		20	LA 27 Business - Sulphur; Cameron
		21	LA 27 - DeQuincy
		23	LA 108 - Industries; Sulphur
		25	Interstate 210 East - Lake Charles Loop
		26	U.S. 90 West - Columbia Southern Road	U.S. 90 joins eastbound and leaves westbound
		27	LA 378 - Westlake
		29	LA 385 South - Business District; Tourist Bureau	eastbound exit and westbound entrance
	Lake Charles	30A	To LA 385 - North Lakeshore Drive	westbound exit and eastbound entrance
		30B	Ryan Street; Business District	westbound exit and eastbound entrance
		31A	U.S. 90 Business - Enterprise Boulevard
		31B	Shattuck Street	westbound exit and eastbound entrance
		31B	U.S. 90 East/To LA 14	eastbound exit and westbound entrance; U.S. 90 joins westbound and leaves eastbound
		32	Opelousas Street
		33	U.S. 171 North LA 14 South - Martin Luther King Jr. Highway; De Ridder
		34	Interstate 210 West - Lake Charles Loop
		36	LA 397 - Creole; Cameron
		43	Louisiana Highway 383:LA 383 - Iowa
Jefferson Davis		44	U.S. 165 - Alexandria
		48	LA 101 - Lacassine
		54	LA 99 - Welsh
		59	LA 395 - Roanoke
		64	LA 26 - Elton; Jennings
		65	LA 97 - Evangeline; Jennings
Acadia		72	Egan
		76	LA 91 - Iota; Estherwood
		80	LA 13 - Eunice; Crowley
		82	LA 1111 - East Crowley
		87	LA 35 - Church Point; Rayne
		92	LA 95 - Mire; Duson
Lafayette		97	LA 93 - Cankton; Scott
	Lafayette	100	LA 3184 - Ambassador Caffery Parkway
		101	LA 182 - North University Avenue
		103A	U.S. 167 South/To U.S. 90 - Morgan City
		103B	Interstate 49 North/U.S. 167 North - Opelousas
		104	Louisiana Avenue; Johnston Street
Saint Martin		109	LA 328 - Breaux Bridge
		115	LA 347 - Cecilia; Henderson	The Atchafalaya Swamp Freeway begins east of here.
		121	LA 105/LA 3177 - Butte La Rose
Iberville		127	Louisiana Highway 975 - Whiskey Bay
		135	Louisiana Highway 3000 - Ramah; Maringouin	The Atchafalaya Swamp Freeway ends here
		139	LA 77 - Rosedale; Grosse Tete
West Baton Rouge		151	LA 415/To U.S. 190 - Lobdell
West Baton Rouge		153	LA 1 - Port Allen; Plaquemine
Mississippi River - Horace Wilkinson Bridge
East Baton Rouge	Baton Rouge	155A	LA 30 - LSU; Nicholson Drive; Highland Road	eastbound exit and westbound entrance
		155B	Interstate 110 North - Business District; Metro Airport
		156C	Louise Street	westbound exit and eastbound entrance
		156A	Washington Street	eastbound exit and westbound entrance
		156B	Dalrymple Drive; LSU	no eastbound entrance
		157A	Perkins Road	eastbound exit and westbound entrance
		157B	LA 427 - Acadian Thruway; LSU
		158	College Drive
		159	Interstate 12 East - Hammond
		160	LA 3064 - Essen Lane
		162A	LA 1248 - Bluebonnet Road
		162B	Picardy Avenue
		163	LA 3246 - Siegen Lane
		166	LA 42/LA 427 - Highland Road; Perkins Road
Ascension		173	LA 73 - Prairieville; Geismar
		177	LA 30 - Gonzales; St. Gabriel
		179	LA 44 - Gonzales; Burnside
		182	LA 22 - Sorrento; Donaldsonville
		187	U.S. 61 South - Gramercy	eastbound exit and westbound entrance; also known as Airline Highway
		187	U.S. 61 North - Sorrento	westbound exit and eastbound entrance
Saint James		194	LA 641 South - Gramercy
Saint John the Baptist		206	LA 3188 South - LaPlace
		209	U.S. 51 To Interstate 55 North - Hammond; LaPlace
		210	Interstate 55 North - Hammond	westbound exit and eastbound entrance
Lake Pontchartrain - Bonnet Carré Spillway
Saint Charles		220	Interstate 310 South - Boutte; Houma
Jefferson	Kenner	221	Loyola Drive
		223AB	LA 49 - Williams Boulevard; New Orleans International Airport	Eastbound exit and entrance
		223A	New Orleans International Airport	Westbound exit only; Airport traffic only
		223B	LA 49 - Williams Boulevard; 32nd Street	Westbound exit and entrance
	Metairie	224	Power Boulevard	westbound exit and eastbound entrance
		225	Veterans Boulevard
		226	Clearview Parkway; Huey P. Long Bridge
		228	Causeway Boulevard; Mandeville
		229	Bonnabel Boulevard
		230	Interstate 610 East - Slidell	No westbound exit
17th Street Canal - 17th Street Canal Bridge
Orleans	New Orleans	231B	Florida Boulevard; West End Boulevard	Westbound exit only; entrances from Pontchartrain Boulevard
		231A	City Park Avenue; Metairie Road
		232	U.S. 61 - Airline Drive; Tulane Avenue; Carrollton Avenue
		234A	U.S. 90; U.S. 90 Business - Superdome; Claiborne Avenue; Westbank
		234B	Poydras Street - Superdome	eastbound exit and westbound entrance
		234 C	U.S. 90 Business West/U.S. 90 West - Westbank; Claiborne Avenue	Westbound exit and east/west entrances
		235B	Canal Street; Superdome	westbound exit; eastbound entrance from northbound Tulane Avenue
		235A	Orleans Avenue; Vieux Carre
		236A	Esplanade Avenue	eastbound exit and westbound entrance
		236B	LA 39 - North Claiborne Avenue	eastbound exit and westbound entrance
		236C	Saint Bernard Avenue	westbound exit and eastbound entrance
		237	LA 3021 - Elysian Fields Avenue
		238B	Interstate 610 West - New Orleans International Airport; Baton Rouge	westbound exit and eastbound entrance
		238A	Franklin Avenue	westbound exit and eastbound entrance
		239	Louisa Street; Almonaster Boulevard	Westbound exit and entrance
		239A	Louisa Street North; Almonaster Boulevard East	Eastbound exit and entrance
		239B	Louisa Street South; Almonaster Boulevard West	Eastbound exit and entrance
		240A	Downman Road	eastbound exit and westbound entrance
		Inner Harbor Navigational Canal - I-10 High Rise Bridge
		240B	U.S. 90 East - Chef Highway	Eastbound exit and entrance
		240B	U.S. 90 West - Chef Highway	Westbound entrance and exit
		241	Morrison Road
		242	Crowder Boulevard
		244	Read Boulevard
		245	Bullard Avenue
		246A	Interstate 510 South/LA 47 South - Chalmette
		246B	LA 47 North - Little Woods
		248	Michoud Boulevard
		251	Bayou Sauvage National Wildlife Refuge	CLOSED as of January 2007, presumably due to Hurricane Katrina damage.
		254	U.S. 11 - Irish Bayou; North Shore
Lake Pontchartrain - Twin Spans
Saint Tammany		261	Oak Harbor Boulevard - Eden Isles
	Slidell	263	LA 433 - Slidell
		Future exit	U.S. 190 Business - Fremaux Avenue; Slidell Business District	Currently under construction
		266	U.S. 190 - Gause Boulevard; Slidell
		267A	Interstate 59 North - Hattiesburg
		267B	Interstate 12 West - Hammond; Baton Rouge