Interstate 10 in Louisiana

This article is about the section of Interstate 10 in Louisiana. For the entire length of the highway, see Interstate 10.

Interstate 10
Route information
Maintained by Louisiana DOTD
Length:	274.42 mi (441.64 km)
Existed:	1939 (planned); 1957 (numbered); 1978 (completed) – present
Major junctions
West end:	I-10 / US 90 at Texas state line
	I-49 in Lafayette I-12 in Baton Rouge I-55 near LaPlace US 90 / US 90 Bus. in New Orleans I-12 / I-59 near Slidell
East end:	I-10 at Mississippi state line
Highway system
Interstate Highway System Main Auxiliary Business Louisiana Highway System Interstate US State ← LA 9 LA 10 → ← LA 3026 3027 LA 3028 →

Interstate 10 (I-10), a major transcontinental Interstate Highway in the Southern United States, runs across the southern part of Louisiana for 274.42 miles (441.64 km). It passes through Lake Charles, Lafayette and Baton Rouge before dipping south of Lake Pontchartrain to serve the New Orleans area and then passing through Slidell before leaving the state.

In August 2005, the I-10 Twin Span Bridge was severely damaged by Hurricane Katrina, rendering it unusable. Initially, the bridge was repaired through a $30.9 million contract with Boh Brothers Construction Company. However, Louisiana has since replaced the bridge with two higher elevation spans in 2009 and 2010.

Route description

From Texas to Lafayette, I-10 parallels the older U.S. Route 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. Route 190, which runs from Opelousas to Baton Rouge. This route has signs and is designated as an alternate I-10 by-pass that runs from I-10/I-49 north to U.S. 190(exit 19B at Opelousas) then east across to Baton Rouge and back down to I-10 via I-110 south. Traffic can be diverted both ways along this route should there be the necessity to close I-10 across the Atchafalaya Swamp Freeway and is also used as a hurricane evacuation route.

I-10 running west of New Orleans, spans the Bonnet Carre Spillway at Lake Pontchartrain

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. Route 61 (Airline Highway) to New Orleans. In the Crescent City, I-10 rejoins U.S. 90 (and later U.S. Route 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, replaced 2003), the Lake Charles I-10 Bridge (1952), the Atchafalaya Swamp Freeway (1973), the Horace Wilkinson Bridge over the Mississippi River (1968), the Bonnet Carré Spillway bridge (ca. 1972), the Industrial Canal Bridge (ca. 1960), the Twin Spans (1965, replaced 2010), and the Pearl River bridge (ca. 1970).

Interstate 10 eastbound passing over Lake Charles/Calcasieu River near Lake Charles

History

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

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. 90 all the way through Louisiana, serving Lake Charles and Lafayette but not Baton Rouge. By ca. 1943, it had been shifted to the north west of New Orleans, using the Louisiana Highway 12 (LA 12), U.S. 190 and US 61 corridors, and serving Baton Rouge but not Lake Charles or Lafayette. The 1947 plan shifted it to roughly the current alignment, including the long stretch of new corridor across the Atchafalaya Swamp. The corridor was assigned the Interstate 10 designation in mid-1957.

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 Airline Highway (US 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 LA 3125 connecting to Gramercy, but no road extends west from the bridge across the Atchafalaya Swamp to Lafayette.

Atchafalaya Swamp Freeway in Iberville Parish

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. 90 corridor into Mississippi, and so I-12 only ran to I-59 north of Slidell. 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.

Construction of the Interstate Highway System in Louisiana began in 1957. Early I-10 contracts were done under the route designation LA 3027. Much of the early construction on the I-10 corridor was concentrated on relieving traffic problems in urban centers. Several such projects were already underway and were incorporated into the route of I-10 during construction, such as the Pontchartrain Expressway in New Orleans. In addition, the two major bridges on the route in Calcasieu Parish between the Texas state line and Lake Charles were built for U.S. 90 in the early 1950s and retrofitted for I-10 traffic. Sections of I-10 through rural areas and/or those sections already served adequately by existing highways, such as Airline Highway (US 61) between Baton Rouge and New Orleans, were constructed later in the program. By the spring of 1975, the entire route of I-10 had been opened across Louisiana except for a problem 5.5 mile section between Gonzales and Sorrento that was not completed for another three years.

The various sections of I-10 in Louisiana were opened to traffic as follows, going from west to east:

• Sabine River Bridge (Texas-Louisiana state line): Existing U.S. 90 bridge, opened May 11, 1954
• Sabine River to Vinton: Existing U.S. 90 opened May 11, 1954; upgraded to interstate standards and opened February 24, 1967
• Vinton to Sulphur: September 21, 1965
• Sulphur to Westlake: April 16, 1962
• Calcasieu River Bridge (Westlake-Lake Charles): Existing U.S. 90 bridge, opened September 28, 1951
• Calcasieu River to U.S. 171 (Lake Charles): April 3, 1963
• U.S. 171 (Lake Charles) to U.S. 165 (Iowa): February 17, 1964
• U.S. 165 (Iowa) to Welsh: December 9, 1964
• Welsh to Jennings: Spring 1965
• Jennings to Crowley: March 28, 1963
• Crowley to Duson: December 19, 1966
• Duson to U.S. 167 (Lafayette): October 30, 1968
• U.S. 167 (Lafayette) to Grosse Tete (including Atchafalaya Basin Bridge): March 12, 1973
• Grosse Tete to Westover: March 28, 1974
• Westover to Port Allen: November 7, 1970
• Mississippi River Bridge (Port Allen-Baton Rouge): April 10, 1968
• Baton Rouge:
  • Mississippi River to Perkins Road: September 18, 1964
  • Perkins Road to College Drive: October 1965
  • College Drive to Highland Road: May 31, 1974
• Highland Road (Baton Rouge) to Gonzales: December 19, 1974
• Gonzales to Sorrento: May 5, 1978
• Sorrento to LaPlace: April 16, 1975
• Laplace to Williams Boulevard (Kenner) (including Bonnet Carré Spillway Bridge): December 17, 1971
• Jefferson Parish:
  • Williams Boulevard (Kenner) to Veterans Highway (Metairie): May 17, 1968
  • Veterans Highway (Metairie) to Causeway Boulevard (Metairie): December 1967
  • Causeway Boulevard (Metairie) to Pontchartrain Expressway (New Orleans): March 26, 1965
• New Orleans:
  • Pontchartrain Expressway:
    • Florida Boulevard to Mound Avenue: October 4, 1962
    • Mound Avenue to Airline Highway (US 61): February 16, 1962
    • Airline Highway (US 61) to Claiborne Avenue (U.S. 90): February 19, 1960
  • Pontchartrain Expressway to Tulane Avenue: December 8, 1972
  • Tulane Avenue to Orleans Avenue: June 16, 1969
  • Orleans Avenue to St. Bernard Avenue: March 14, 1968
  • St. Bernard Avenue to Franklin Avenue: February 27, 1968
  • Franklin Avenue to Industrial Canal: April 1966
  • Industrial Canal Bridge: December 21, 1965
  • Industrial Canal to Morrison Road: December 8, 1966
  • Morrison Road to Paris Road: October 18, 1972
  • Paris Road to U.S. 11: April 24, 1967
• U.S. 11 (New Orleans) to I-12/I-59 (Slidell) (including Lake Pontchartrain Twin Span Bridge): December 21, 1965
• I-12/I-59 (Slidell) to East Pearl River: February 16, 1971
• Pearl River Bridge (Louisiana-Mississippi state line): February 16, 1971

In the aftermath of Hurricane Katrina, the I-10 Twin Span Bridge, a portion of I-10 between New Orleans and Slidell, spanning the eastern end of Lake Pontchartrain, was severely damaged, causing a break in I-10 at that point. Unlike the Escambia Bay Bridge (east of Pensacola, Florida and damaged by Hurricane Ivan) which is a major artery, I-12 is available to bypass New Orleans. Taking I-12 to the Lake Ponchartrain Causeway allowed entry and exit to and from the Greater New Orleans area from the East. On October 14, 2005 at 3:00 PM, the eastbound span was reopened to two way traffic. On January 6, 2006 at 6:00 AM, both lanes of the westbound span were reopened to traffic using temporary metal trusses and road panels to replace damaged sections. This restored all four lanes of the I-10 Twin Span for normal traffic with a 45 mph (70 km/h) speed limit for the westbound lanes and 60 mph (100 km/h) for the eastbound lanes. Oversized and overweight traffic was prohibited until a new permanent six-lane span replaced the two temporarily repaired spans. The eastbound span opened to traffic on July 9, 2009, and the westbound span opened on April 7, 2010, with the old bridge being permanently closed. The approaches to the westbound lanes were completed with a ribbon cutting ceremony on September 8, 2011 and the opening of all 6 lanes the next morning. The old Twin Span will be demolished in the near future.

Future

A three-year construction project is currently underway on Interstate 10 between Causeway Boulevard and the 17th Street Canal in Metairie, Louisiana. The $68.9 million project will add new lanes in both directions and improve the exit and entrance ramps at Causeway and Bonnabel Blvd. The state has recently completed a widening project between Causeway and Clearview Pkwy and between the I-10/I-610 split and Airline Highway (US 61).

A 950-day project is set to begin at the end of 2008 between the I-10 / I-12 split (Exit 159) in Baton Rouge, Louisiana, to Siegen Lane (Exit 163) in Baton Rouge, LA. This will widen the road by an additional lane in each direction.

There are also calls to remove the I-10 Claiborne Expressway in New Orleans and rename I-610 to I-10. The entire length of the Pontchartrain Expressway would likely be renamed as I-910 or I-49.

Exit list

Parish	Location	Mile	km	Exit	Destinations	Notes
Calcasieu		0.0	0.0		I-10 / US 90 west – Beaumont	Western terminus; Texas–Louisiana state line
		0.0– 0.5	0.0– 0.8	Bridge over Sabine River
		0.6	1.0	1	Sabine River Turnaround	Eastbound entrance and westbound exit
	Toomey	4.0– 4.4	6.4– 7.1	4	US 90 east to LA 109 – Toomey, Starks	East end of US 90 concurrency
	Vinton	7.4– 7.8	11.9– 12.6	7	LA 3063 – Vinton	Southern terminus of LA 3063
		8.7– 9.3	14.0– 15.0	8	LA 108 – Vinton	Western terminus of LA 108
	Sulphur	20.3– 21.0	32.7– 33.8	20	LA 1256 to LA 27 – Sulphur, Cameron
		21.4– 21.9	34.4– 35.2	21	LA 27 – DeQuincy
		23.4– 23.9	37.7– 38.5	23	LA 108 – Industries, Sulphur
		24.9– 25.7	40.1– 41.4	25	I-210 east (Lake Charles Loop)	Western terminus of I-210 (Exit 1A–B on I-210)
		26.1– 27.1	42.0– 43.6	26	PPG Drive (eastbound) US 90 west / PPG Drive, Trousdale Road (westbound)	West end of US 90 concurrency
	Westlake	27.7– 28.0	44.6– 45.1	27	LA 378 – Westlake	Southern terminus of LA 378
	Westlake–Lake Charles line	28.0– 29.3	45.1– 47.2	Bridge over Calcasieu River
	Lake Charles	29.5– 30.2	47.5– 48.6	29	LA 1262 (Lakeshore Drive) – Downtown Area	Northern terminus of LA 1262; signed as Exit 30A westbound
		30.4– 30.7	48.9– 49.4	30B	Ryan Street – Downtown Area	Eastbound entrance and westbound exit
		31.0– 31.5	49.9– 50.7	31A	US 90 Bus. (Enterprise Boulevard)	Western terminus of US 90 Business
		31.7– 32.0	51.0– 51.5	31B	US 90 east to LA 14 (eastbound) Shattuck Street (westbound)	East end of US 90 concurrency
		32.4– 32.7	52.1– 52.6	32	Opelousas Street	No eastbound entrance
		32.7– 33.3	52.6– 53.6	33	US 171 north – DeRidder, Shreveport To LA 14 – Cameron (westbound only)
		33.8– 34.4	54.4– 55.4	34	I-210 west (Loop)	Eastern terminus of I-210 (Exit 12 on I-210)
		35.8– 36.4	57.6– 58.6	36	LA 397 – Creole, Cameron
	Iowa	42.8– 43.1	68.9– 69.4	43	LA 383 – Iowa
Jefferson Davis		44.3– 44.6	71.3– 71.8	44	US 165 – Kinder, Alexandria
	Lacassine	47.9– 48.2	77.1– 77.6	48	LA 101 – Lacassine
	Welsh	54.3– 54.6	87.4– 87.9	54	LA 99 – Welsh
	Roanoke	59.1– 59.5	95.1– 95.8	59	LA 395 – Roanoke
	Jennings	63.6– 64.1	102.4– 103.2	64	LA 26 – Elton, Jennings
		65.7– 66.1	105.7– 106.4	65	LA 97 – Evangeline, Jennings
Acadia		71.8– 72.2	115.6– 116.2	72	Egan	To LA 91/LA 100 via Trumps Road (not signed)
		75.8– 76.2	122.0– 122.6	76	LA 91 – Iota, Estherwood
	Crowley	80.4– 81.0	129.4– 130.4	80	LA 13 – Eunice, Crowley
		81.8– 82.3	131.6– 132.4	82	LA 1111 – East Crowley
	Rayne	87.5– 88.0	140.8– 141.6	87	LA 35 / LA 98 – Church Point, Rayne
	Duson	92.2– 92.6	148.4– 149.0	92	LA 95 – Mire, Duson
Lafayette	Scott	97.3– 97.7	156.6– 157.2	97	LA 93 – Cankton, Scott
	Lafayette	99.7– 100.2	160.5– 161.3	100	LA 3184 (Ambassador Caffery Parkway)	Northern terminus of LA 3184
		101.6– 102.2	163.5– 164.5	101	LA 182 (North University Avenue)
		102.9– 103.5	165.6– 166.6	103A–B	US 167 south to US 90 – Morgan City I-49 / US 167 north – Opelousas	Southern terminus of I-49 (Exit 1A–B on I-49); signed as Exit 103A to Morgan City and 103B to Opelousas
		104.1– 105.0	167.5– 169.0	104	Louisiana Avenue
St. Martin	Breaux Bridge	109.4– 109.9	176.1– 176.9	109	LA 328 – Breaux Bridge
		114.6– 115.2	184.4– 185.4	115	LA 347 – Cecilia, Henderson
	Henderson	117.3	188.8	West end of Louisiana Airborne Memorial Bridge over Atchafalaya Basin
		121.4– 121.7	195.4– 195.9	121	LA 3177 – Butte LaRose	Northern terminus of LA 3177
		121.9	196.2	Bridge over Atchafalaya River
Iberville		126.9	204.2	Bridge over Whiskey Bay Pilot Channel
		127.3– 127.6	204.9– 205.4	127	LA 975 – Whiskey Bay	Southern terminus of LA 975
	Ramah	135.1	217.4	East end of Louisiana Airborne Memorial Bridge over Atchafalaya Basin
		135.2– 135.5	217.6– 218.1	135	LA 3000 – Ramah, Maringouin	Southern terminus of LA 3000; to LA 76 (not signed)
	Grosse Tete	139.3– 139.9	224.2– 225.1	139	LA 77 – Rosedale, Grosse Tete
West Baton Rouge		151.1– 151.7	243.2– 244.1	151	LA 415 to US 190 – Lobdell	Southern terminus of LA 415
	Port Allen	153.2– 153.8	246.6– 247.5	153	LA 1 – Port Allen, Plaquemine
West Baton Rouge–East Baton Rouge line	Port Allen–Baton Rouge line	153.4– 155.0	246.9– 249.4	Horace Wilkinson Bridge over Mississippi River
East Baton Rouge	Baton Rouge	154.8	249.1	155A	LA 30 (Nicholson Drive) / Highland Road – LSU	Eastbound exit and westbound entrance
		155.1– 155.6	249.6– 250.4	155B	I-110 north – Downtown, Metro Airport	Southern terminus of I-110 (Exit 1I–J on I-110)
		155.9	250.9	155C	Louise Street	Eastbound entrance and westbound exit
		155.7	250.6	156A	Washington Street	Eastbound exit and westbound entrance
		156.2	251.4	156B	Dalrymple Drive – LSU	No eastbound entrance
		156.9– 157.1	252.5– 252.8	157A	Perkins Road	Eastbound exit and westbound entrance
		257.2– 157.7	413.9– 253.8	157B	Acadian Thruway – LSU	Acadian Thruway is LA 427 (not signed)
		157.9– 158.3	254.1– 254.8	158	College Drive
		159.3– 160.0	256.4– 257.5	159	I-12 east – Hammond	Western terminus of I-12 (Exit 1A on I-12)
		160.4– 161.0	258.1– 259.1	160	LA 3064 (Essen Lane)
		161.6– 163.3	260.1– 262.8	162A–B	LA 1248 (Bluebonnet Boulevard) Mall of Louisiana Boulevard	Northern terminus of LA 1248; signed as Exit 162A to Bluebonnet and 162B to Mall of Louisiana
		162.9– 163.8	262.2– 263.6	163	LA 3246 (Siegen Lane)
	Kleinpeter	166.5– 167.1	268.0– 268.9	166	LA 42 (Highland Road) LA 427 (Perkins Road)
Ascension	Prairieville	172.6– 173.2	277.8– 278.7	173	LA 73 – Prairieville, Geismar	Local name Old Jefferson Highway (not signed)
	Gonzales	177.2– 177.9	285.2– 286.3	177	LA 30 – Gonzales, St. Gabriel
		179.3– 180.0	288.6– 289.7	179	LA 44 – Gonzales, Burnside
	Sorrento	182.3– 183.0	293.4– 294.5	182	LA 22 – Sorrento, Donaldsonville
		186.9– 187.5	300.8– 301.8	187	US 61 south – Gramercy (eastbound) US 61 north – Sorrento (westbound)	Local name Airline Highway (not signed)
St. James		194.5– 195.1	313.0– 314.0	194	LA 641 south – Gramercy, Lutcher	Northern terminus of LA 641
St. John the Baptist	LaPlace	205.6– 206.3	330.9– 332.0	206	LA 3188 south – LaPlace	Northern terminus of LA 3188
		209.1– 209.8	336.5– 337.6	209	US 51 to I-55 north – Hammond, LaPlace	To I-59 signed on eastbound exit only
		209.2	336.7	West end of bridge over Bonnet Carré Spillway / LaBranche Wetlands
		210.1	338.1	210	I-55 north – Hammond	Southern terminus of I-55 (Exit 1 on I-55); eastbound entrance and westbound exit
St. Charles		219.6– 220.8	353.4– 355.3	220	I-310 south – Boutte, Houma	Northern terminus of I-310 (Exit 1, 1A on I-310)
Jefferson	Kenner	221.1	355.8	East end of bridge over Bonnet Carré Spillway / LaBranche Wetlands
		221.2– 222.0	356.0– 357.3	221	Loyola Drive
		223.1– 224.0	359.0– 360.5	223A–B	LA 49 (Williams Boulevard) / 32nd Street N. O. Int'l Airport	Signed as Exit 223A to Williams/32nd and 223B to Airport; Williams (all movements), 32nd Street (westbound exit), Airport (eastbound entrance and westbound exit)
	Metairie	224.5– 224.7	361.3– 361.6	224	Power Boulevard	Eastbound entrance and westbound exit
		224.9– 225.5	361.9– 362.9	225	Veterans Boulevard
		226.5– 227.2	364.5– 365.6	226	Clearview Parkway – Huey Long Bridge	Northern terminus of LA 3152 (not signed)
		228.1– 229.0	367.1– 368.5	228	Causeway Boulevard – Mandeville Bonnabel Boulevard (eastbound only)	To Mandeville via Lake Pontchartrain Causeway
		229.5– 229.7	369.3– 369.7	229	Bonnabel Boulevard	Eastbound entrance and westbound exit (other movements via Exit 228)
Jefferson–Orleans line	Metairie–New Orleans line	230.3– 231.1	370.6– 371.9	230	I-610 east – Slidell	Western terminus of I-610 (Exit 1B on I-610); no westbound exit
Orleans	New Orleans	230.7– 231.1	371.3– 371.9	231B	Florida Boulevard, West End Boulevard	Eastbound exit via Exit 1A on I-610; Florida Boulevard only accessed from westbound exit
		231.3– 232.0	372.2– 373.4	231A	City Park Avenue, Metairie Road	Eastern terminus of LA 611-9 (not signed)
		231.9– 233.3	373.2– 375.5	232	US 61 (Airline Drive, Tulane Avenue) Carrollton Avenue
		233.8– 234.1	376.3– 376.7	234A	US 90 Bus. – Westbank US 90 (Claiborne Avenue) – Superdome	Eastern terminus of US 90 Business; eastbound exit and westbound entrance
		234.3	377.1	234B	Poydras Street – Superdome	Eastbound exit and westbound entrance
		234.5– 234.8	377.4– 377.9	234C	US 90 Bus. west – Westbank US 90 west (Claiborne Avenue)	Eastbound entrance and westbound exit
		235.0	378.2	235B	Canal Street – Superdome	Eastbound entrance and westbound exit
		235.4– 235.9	378.8– 379.6	235A	Orleans Avenue – Vieux Carré
		235.6	379.2	236A	Esplanade Avenue	Eastbound exit only
		236.0– 236.2	379.8– 380.1	236B	LA 39 (North Claiborne Avenue)	Northern terminus of LA 39; eastbound exit and westbound entrance
		236.4	380.4	236C	St. Bernard Avenue	Eastbound entrance and westbound exit
		236.7– 237.2	380.9– 381.7	237	Elysian Fields Avenue	Elysian Fields Avenue is LA 3021 (not signed)
		238.0– 238.3	383.0– 383.5	238B	I-610 west – N.O. Int'l Airport, Baton Rouge	Eastern terminus of I-610 (no exit number on I-610); eastbound entrance and westbound exit
		238.2	383.3	238A	Franklin Avenue	Eastbound entrance and westbound exit
		238.5– 239.2	383.8– 385.0	239A–B	Louisa Street (north/south) Almonaster Boulevard (east/west)	Signed eastbound as Exit 239A (south/east) and 239B (north/west), westbound as Exit 239 (Almonaster not signed)
		238.9– 240.2	384.5– 386.6	High Rise Bridge over Inner Harbor Navigation Canal (Industrial Canal)
		239.8– 240.0	385.9– 386.2	240A	Downman Road	Eastbound exit and westbound entrance
		240.4– 240.8	386.9– 387.5	240B	US 90 (Chef Highway)
		241.5– 241.9	388.7– 389.3	241	Morrison Road	Eastern terminus of LA 1253 (not signed)
		242.6– 243.0	390.4– 391.1	242	Crowder Boulevard
		243.6– 244.2	392.0– 393.0	244	Read Boulevard
		244.8– 245.3	394.0– 394.8	245	Bullard Avenue
		246.3– 247.0	396.4– 397.5	246A–B	I-510 / LA 47 south – Chalmette LA 47 north – Little Woods	Northern terminus of I-510 (Exit 1A on I-510); signed as Exit 246A to Chalmette and 246B to Little Woods
		247.9– 248.5	399.0– 399.9	248	Michoud Boulevard
		249.3– 249.8	401.2– 402.0	249	–	Abandoned interchange (connecting road never constructed)
		250.7– 251.3	403.5– 404.4	251	–	Abandoned interchange (connecting road never constructed); serves gravel road to lake levee used by construction traffic
		254.2– 254.9	409.1– 410.2	254	US 11 – North Shore, Irish Bayou
Orleans–St. Tammany line		254.8– 260.4	410.1– 419.1	Twin Span Bridge over Lake Pontchartrain
St. Tammany		260.9– 261.7	419.9– 421.2	261	Lakeshore, Oak Harbor
	Slidell	263.2– 263.7	423.6– 424.4	263	LA 433 (Old Spanish Trail)
		264.8– 265.3	426.2– 427.0	265	US 190 Bus. (Fremaux Avenue)
		265.9– 266.4	427.9– 428.7	266	US 190 (Gause Boulevard)
		267.1– 268.2	429.9– 431.6	267A–B	I-59 north – Hattiesburg I-12 west – Hammond	Eastern terminus of I-12 (Exit 85A,C on I-12); southern terminus of I-59 (Exit 1A–B on I-59); Signed as Exit 267A to I-59 and 267B to I-12
		269.7– 270.1	434.0– 434.7	Bridge over West Pearl River
		273.1– 273.6	439.5– 440.3	Bridge over Pearl River
		273.6	440.3		I-10 east – Bay St. Louis	Continuation in Mississippi
Concurrency terminus       Closed/former       HOV only       Incomplete access       Tolled/ETC       Unopened

Auxiliary routes

Interstate 10 crossing the Mississippi River in Baton Rouge over the Horace Wilkinson Bridge

• 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 1962.
• 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.
  • 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.
• 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 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.
• 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.
• Interstate 610 is a bypass for through traffic north of downtown New Orleans. It was added in September 1955.
• 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.

See also

• Airline Highway
• Acadian Thruway

External links

Template:Attached_KML/Interstate 10 in Louisiana

• Media related to Interstate 10 in Louisiana at Wikimedia Commons

Interstate 10
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