I-10 highlighted in red | ||||
| Route information | ||||
| Maintained byLouisiana DOTD | ||||
| Length | 274.42 mi[1] (441.64 km) | |||
| Existed | 1957–present | |||
| History | Completed in 1978[2] | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end | ||||
| Major intersections |
| |||
| East end | ||||
| Location | ||||
| Country | United States | |||
| State | Louisiana | |||
| Parishes | Calcasieu,Jefferson Davis,Acadia,Lafayette,St. Martin,Iberville,West Baton Rouge,East Baton Rouge,Ascension,St. James,St. John the Baptist,St. Charles,Jefferson,Orleans,St. Tammany | |||
| Highway system | ||||
| ||||
| ||||
| ||||
Interstate 10 (I-10), a major transcontinentalInterstate Highway in theSouthern United States, runs across the southern part ofLouisiana for 274.42 miles (441.64 km)[1][3] fromTexas toMississippi. It passes throughLake Charles,Lafayette, andBaton Rouge, dips south ofLake Pontchartrain to serve theNew Orleans metropolitan area, then crosses Lake Pontchartrain and leaves the state.
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I-10 enters Louisiana at the state's southwestern corner fromOrange,Texas, in a concurrency withUS Route 90 (US 90), which leaves the freeway at the first exit. The two routes closely parallel each other through much of the state. The first community I-10 approaches in the state isVinton, Louisiana. BetweenSulphur andLake Charles there is an interchange withI-210. I-10 crosses theCalcasieu River Bridge into Lake Charles, passing north of the center of town, before meeting the western end of I-210. Between Lake Charles andLafayette, I-10 bypasses several small towns includingIowa,Welsh,Jennings, andCrowley. In Lafayette, I-10 meets the current southern terminus ofI-49, leaving northwest out of the city and passing by the community ofBreaux Bridge.
From Lafayette, the highway heads east-northeast toward Baton Rouge via theAtchafalaya Swamp Freeway, an 18.2-mile (29.3 km) bridge across theAtchafalaya River and its accompanying swamp. Between the two cities, I-10 parallelsUS 190, fromOpelousas to Baton Rouge. This route has signs and is designated as an alternate I-10 bypass that runs from I-10/I-49 north to US 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.

In the capital of Baton Rouge, US 190 continues east alongsideI-12 toHammond andSlidell while I-10 turns southeastward and parallelsUS 61 (Airline Highway) toNew Orleans. In the Crescent City, I-10 rejoins US 90 (and laterUS 11) as it heads towardSlidell. In Slidell, US 11 continues northeastward towardHattiesburg, Mississippi while I-10 and US 90 turn eastward toward coastalMississippi.
Major bridges on I-10 in Louisiana include theSabine River Bridge (c. 1952, replaced 2003), theLake Charles I-10 Bridge (1952), the Atchafalaya Swamp Freeway (1973), theHorace Wilkinson Bridge over theMississippi River (1968), theBonnet Carré Spillway Bridge (c. 1972), theIndustrial Canal Bridge (c. 1960),Frank Davis "Naturally N'Awlins" Memorial Bridge (1965, replaced 2010), and thePearl River Bridge (c. 1970).


By the beginning of planning for theInterstate Highway System in 1939 (then called the Interregional Highway System), theHouston–New Orleans–Mobile corridor was part of the system. Preliminary plans took it along US 90 all the way through Louisiana, serving Lake Charles and Lafayette but not Baton Rouge.[4] By c. 1943, it had been shifted to the north west of New Orleans, using theLouisiana Highway 12 (LA 12), US 190, and US 61 corridors, and serving Baton Rouge but not Lake Charles or Lafayette.[5] The 1947 plan shifted it to roughly the current alignment, including the long stretch of new corridor across the Atchafalaya Swamp.[6] The corridor was assigned the I-10 designation in mid-1957.[7]
Prior to the gaining of federal funding for the Interstate System in the late 1950s, atoll road, theAcadian Thruway, had been proposed between Lafayette and a point nearGramercy on Airline Highway (US 61). This would have provided a shorter route than I-10, bypassing Baton Rouge to the south. TheGramercy Bridge was later built along its planned alignment, withLA 3125 connecting to Gramercy, but no road extends west from the bridge across the Atchafalaya Swamp to Lafayette.


I-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 andI-59 split in eastern New Orleans, with I-59 following present I-10 and I-10 following the US 90 corridor into Mississippi, and so I-12 only ran to I-59 north of Slidell.[8] 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.[9]
Construction of the Interstate Highway System in Louisiana began in 1957.[10] 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 thePontchartrain Expressway in New Orleans. In addition, the two major bridges on the route inCalcasieu Parish between the Texas state line and Lake Charles were built for US 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 (8.9 km) section betweenGonzales andSorrento that was not completed for another three years.
| Segment | Year opened |
|---|---|
| Sabine River Bridge (Texas-Louisiana state line) | Existing US 90 bridge opened May 11, 1954[11] |
| Sabine River toVinton | Existing US 90 opened May 11, 1954; upgraded to interstate standards and opened February 24, 1967[12] |
| Vinton toSulphur | September 21, 1965[13] |
| Sulphur toWestlake | April 16, 1962[14] |
| Calcasieu River Bridge (Westlake-Lake Charles) | Existing US 90 bridge, opened September 28, 1951[15] |
| Calcasieu River toUS 171 (Lake Charles) | April 3, 1963[16] |
| US 171 (Lake Charles) toUS 165 (Iowa) | February 17, 1964[17] |
| US 165 (Iowa) toWelsh | December 9, 1964[18] |
| Welsh toJennings | Spring 1965[18] |
| Jennings toCrowley | March 28, 1963[19] |
| Crowley toDuson | December 19, 1966[20] |
| Duson toUS 167 (Lafayette) | October 30, 1968[21] |
| US 167 (Lafayette) toGrosse Tete (includingAtchafalaya Basin Bridge) | March 12, 1973[22] |
| Grosse Tete to Lobdell | March 28, 1974[23] |
| Lobdell toPort Allen | November 7, 1970[24] |
| Baton RougeMississippi River Bridge (Port Allen-Baton Rouge) | April 10, 1968[25] |
| Baton Rouge Mississippi River to Perkins Road | September 18, 1964[26] |
| Baton Rouge Perkins Road to College Drive | October 1965[27] |
| Baton Rouge: College Drive to Highland Road | May 31, 1974[28] |
| Highland Road to Gonzales | December 19, 1974[29] |
| Gonzales to Sorrento | May 5, 1978[30] |
| Sorrento toLaPlace | April 16, 1975[31] |
| Laplace toWilliams Boulevard (Kenner) (includingBonnet Carré Spillway Bridge) | December 17, 1971[32] |
| Jefferson Parish: Williams Boulevard toVeterans Highway (Metairie) | May 17, 1968[33] |
| Jefferson Parish: Veterans Memorial Boulevard to Causeway Boulevard (Metairie) | December 1967[34] |
| Jefferson Parish: Causeway Boulevard Metairie to Pontchartrain Expressway (New Orleans) | March 26, 1965[35] |
| New Orleans: Pontchartrain Expressway from Florida Avenue to Mound Avenue | October 4, 1962[36] |
| New Orleans: Pontchartrain Expressway from Mound Avenue to Airline Highway (US 61) | February 16, 1962[37] |
| New Orleans: Pontchartrain Expressway from Airline Highway (US 61) toClaiborne Avenue (US 90) | February 19, 1960[38] |
| New Orleans: Claiborne Expressway from Pontchartrain Expressway to Tulane Avenue | December 8, 1972[39] |
| New Orleans: Claiborne Expressway from Tulane Avenue to Orleans Avenue | June 16, 1969[40] |
| New Orleans: Claiborne Expressway from Orleans Avenue to St. Bernard Avenue | March 14, 1968[41] |
| New Orleans: Claiborne Expressway from St. Bernard Avenue to Franklin Avenue | February 27, 1968[42] |
| New Orleans: Claiborne Expressway from Franklin Avenue toIndustrial Canal | April 1966[43] |
| New Orleans:Industrial Canal Bridge | December 21, 1965[44] |
| New Orleans: Industrial Canal toMorrison Road | December 8, 1966[45] |
| New Orleans: Morrison Road toParis Road | October 18, 1972[46] |
| New Orleans: Paris Road to US 11 | April 24, 1967[47] |
| US 11 (New Orleans) to I-12/I-59 (Slidell) (includingLake Pontchartrain Twin Span Bridge) | December 21, 1965[48] |
| I-12/I-59 (Slidell) toEast Pearl River | February 16, 1971[49] |
| Pearl River Bridge (Louisiana-Mississippi state line) | February 16, 1971[49] |
Reconstruction of the portion at the I-610 Split vicinity was undertaken in the late 1990s. Also in the late 1990s, further work was done on the expressway as two ramps were constructed, connecting West I-10 to West Business U.S. 90 and westbound Claiborne Avenue (West US 90), replacing an earlier, more dangerous ramp. The direct ramp from 90B East to I-10 East was completed by 1989.[50]
In the aftermath ofHurricane 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 theEscambia Bay Bridge (east ofPensacola,Florida and damaged byHurricane Ivan), which is a major artery, I-12 is available to bypass New Orleans. Taking I-12 to theLake Pontchartrain Causeway allowed entry and exit to and from theGreater 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.[51][unreliable source] This restored all four lanes of the I-10 Twin Span for normal traffic with a 45 mph (72 km/h) speed limit for the westbound lanes and 60 mph (97 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.[52][53][54][55] The approaches to the westbound lanes were completed with a ribbon cutting ceremony on September 8, 2011, and the opening of all six lanes the next morning.[56] The old Twin Span will be demolished in the near future.[57] In 2014, theLouisiana State Legislature officially named the Twin Span as theFrank Davis "Naturally N'Awlins" Memorial Bridge.[58]
A $68.9 million three-year construction project was completed betweenCauseway Boulevard and the17th Street Canal inMetairie, Louisiana. It added new lanes in both directions and improve the exit and entrance ramps at Causeway and Bonnabel Boulevard.[citation needed]
In 2012, the state completed a widening project between Causeway and Clearview Parkway and between the I-10/I-610 split and Airline Highway (US 61).[59][unreliable source?] In 2015, the additional lanes were extended in Metairie, from Clearview Parkway west toVeterans Boulevard.[citation needed]
I-10 was widened to three lanes in each direction from the I-10/I-12 split to Highland Road (exit 166) from late 2008 to spring 2013.[citation needed]
On April 8, 2017, Louisiana DOTD broke ground on the reconstruction of seven miles (11 km) of I-10 between I-49 (exit 103) and the Atchafalaya Basin. A center concrete barrier was constructed, the road was repaved, and an extra travel lane was constructed, making I-10 three lanes in each direction. Construction began May 2017, was completed in October 2021, and had a ribbon cutting ceremony on November 22, 2021.[60]
In order to reduce the amount of congestion for travelers trying to reach theLouis Armstrong New Orleans International Airport, flyover ramps were constructed at the I-10 and Loyola Drive Interchange in Kenner.[61] Part of the project is constructing a diverging diamond interchange where both of the roads meet as well.[62] The project connected I-10 to the new terminal at the airport that was completed in November 2019 and allowed quick access to a planned station on the proposedBaton Rouge–New OrleansAmtrak route on the south side of the airport.[63] Construction began after the terminal was completed and was expected to be completed in November 2022.[64] However, supply chain problems and the damage caused byHurricane Ida in2021 delayed the completion of the project to early-2023.[65] Rainy weather during the Summer of 2022 further delayed the completion of the project to the Summer of 2023. Work on the diverging diamond interchange, which will be the first ever constructed in the state, was not to be started until the completion of the flyover bridges.[66][67] The I-10 westbound ramp to Loyola Drive was finally opened to traffic on September 29, 2023;[68][69] the ramp from the airport to I-10 east opened two weeks later on October 13.[67] The diverging diamond opened on October 30.[70]
There are calls to remove I-10 from the Claiborne Expressway in New Orleans and renameI-610 to I-10. The entire length of thePontchartrain Expressway would likely be renamed as I-910 or I-49.[71] The movement to remove the expressway received backing fromPresident Biden in April 2021.[72] However, opponents of the removal, which could cost over $4 billion, pointed out that removing the road would increase and worsen traffic through the area as well as in other neighborhoods among other things. Instead, in October 2022, the governments ofLouisiana andNew Orleans introduced a $94.7 million proposal to improve theelevated freeway and the space beneath it as well remove four ramps inTremé. They proposal asked for a $47 million grant for the project.[73]
In 2022, the Calcasieu River Bridge turned 70 years old. With over 600,000 bridges, the average bridge age in the United States is 42 years old, with one in nine rated as deficient. Louisiana has a total of 13,050 bridges, and 1,827 (14%) are considered deficient. 1,963 bridges (15%) are considered functionally obsolete.[74][75] It had been decided the bridge needed replacing since before 2002. There are several areas of concern including the age of the bridge, the low bridge ratings, steep grades, traffic congestion, amount of traffic that has been estimated at around 55,000 vehicles a day, low vertical traffic clearance, and contamination. These contributing factors rank the bridge as "a dangerous bridge" and 7th in the nation in need of replacing.[76] In 2023, a plan was vetoed on the replacement bridge due to tolls being proposed. This made the project on hold[77] until 2024 when a plan was approved that would includetolls, with especially high prices fortrucks.[78]
| Parish | Location | mi[3] | km | Exit | Destinations | Notes |
|---|---|---|---|---|---|---|
| Sabine River | 0.00 | 0.00 | Continuation intoOrange, Texas | |||
| 0.00– 0.5 | 0.00– 0.80 | Louisiana–Texas line | ||||
| Calcasieu | | 0.6 | 0.97 | 1 | Sabine River Turnaround | Westbound exit and eastbound entrance |
| Toomey | 4.0– 4.4 | 6.4– 7.1 | 4 | East end of US 90 concurrency | ||
| Vinton | 7.4– 7.8 | 11.9– 12.6 | 7 | Southern terminus of LA 3063 | ||
| 8.7– 9.3 | 14.0– 15.0 | 8 | Western terminus of LA 108 | |||
| Sulphur | 20.3– 21.0 | 32.7– 33.8 | 20 | Northern terminus of LA 1256 | ||
| 21.4– 21.9 | 34.4– 35.2 | 21 | ||||
| 23.4– 23.9 | 37.7– 38.5 | 23 | ||||
| | 24.9– 25.7 | 40.1– 41.4 | 25 | Western terminus of I-210 (exit 1 on I-210) | ||
| | 26.1– 27.1 | 42.0– 43.6 | 26 | West end of US 90 concurrency; eastbound signed as "PPG Drive" only | ||
| Westlake | 27.7– 28.0 | 44.6– 45.1 | 27 | Southern terminus of LA 378 | ||
| Calcasieu River | 28.0– 29.3 | 45.1– 47.2 | Louisiana Memorial World War II Bridge | |||
| Lake Charles | 29.5– 30.2 | 47.5– 48.6 | 29 | 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 | Western terminus of US 90 Bus.; additional westbound entrance from Kirkman Street | |||
| 31.7– 32.0 | 51.0– 51.5 | 31B | Shattuck Street | Eastbound signage; east end of US 90 concurrency Westbound signage | ||
| 32.4– 32.7 | 52.1– 52.6 | 32 | Opelousas Street | No eastbound entrance | ||
| 32.7– 33.3 | 52.6– 53.6 | 33 | Access to LA 14 via US 171 south; LA 14 not signed eastbound; eastbound access to US 171 south via exit 32 | |||
| | 33.8– 34.4 | 54.4– 55.4 | 34 | Eastern terminus of I-210 (exit 12 on I-210) | ||
| | 35.8– 36.4 | 57.6– 58.6 | 36 | |||
| Iowa | 42.8– 43.1 | 68.9– 69.4 | 43 | |||
| Jefferson Davis | | 44.3– 44.6 | 71.3– 71.8 | 44 | ||
| Lacassine | 47.9– 48.2 | 77.1– 77.6 | 48 | |||
| Welsh | 54.3– 54.6 | 87.4– 87.9 | 54 | |||
| Roanoke | 59.1– 59.5 | 95.1– 95.8 | 59 | |||
| Jennings | 63.6– 64.1 | 102.4– 103.2 | 64 | |||
| 65.7– 66.1 | 105.7– 106.4 | 65 | ||||
| Acadia | | 71.8– 72.2 | 115.6– 116.2 | 72 | Egan | ToLA 91/LA 100 via Trumps Road (not signed) |
| | 75.8– 76.2 | 122.0– 122.6 | 76 | |||
| Crowley | 80.4– 81.0 | 129.4– 130.4 | 80 | |||
| 81.8– 82.3 | 131.6– 132.4 | 82 | ||||
| Rayne | 87.5– 88.0 | 140.8– 141.6 | 87 | |||
| Duson | 92.2– 92.6 | 148.4– 149.0 | 92 | |||
| Lafayette | Scott | 97.3– 97.7 | 156.6– 157.2 | 97 | ||
| Lafayette | 99.7– 100.2 | 160.5– 161.3 | 100 | Northern terminus of LA 3184 | ||
| 101.6– 102.2 | 163.5– 164.5 | 101 | West end of LA 182 concurrency | |||
| 102.9– 103.5 | 165.6– 166.6 | 103 | Current southern terminus and exits 1A-B on I-49; east end of LA 182 concurrency; signed as exits 103A (south) and 103B (north) | |||
| 104.1– 105.0 | 167.5– 169.0 | 104 | Louisiana Avenue | |||
| St. Martin | Breaux Bridge | 109.4– 109.9 | 176.1– 176.9 | 109 | ||
| | 114.6– 115.2 | 184.4– 185.4 | 115 | |||
| Atchafalaya Basin | 117.3 | 188.8 | West end ofLouisiana Airborne Memorial Bridge | |||
| 121.4– 121.7 | 195.4– 195.9 | 121 | Northern terminus of LA 3177; to Atchafalaya Welcome Center | |||
| Iberville | 127.3– 127.6 | 204.9– 205.4 | 127 | Southern terminus of LA 975 | ||
| 135.1 | 217.4 | East end ofLouisiana Airborne Memorial Bridge | ||||
| Ramah | 135.2– 135.5 | 217.6– 218.1 | 135 | Southern terminus of LA 3000; toLA 76 (not signed) | ||
| Grosse Tete | 139.3– 139.9 | 224.2– 225.1 | 139 | |||
| West Baton Rouge | | 151.1– 151.7 | 243.2– 244.1 | 151 | Southern terminus of LA 415 | |
| Port Allen | 153.2– 153.8 | 246.6– 247.5 | 153 | |||
| Mississippi River | 153.4– 155.0 | 246.9– 249.4 | Horace Wilkinson Bridge | |||
| East Baton Rouge | Baton Rouge | 154.8 | 249.1 | 155A | Eastbound exit and westbound entrance | |
| 155.1– 155.6 | 249.6– 250.4 | 155B | 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 | ||
| 157.2– 157.7 | 253.0– 253.8 | 157B | Acadian Thruway (LA 427) –LSU | |||
| 157.9– 158.3 | 254.1– 254.8 | 158 | College Drive | |||
| 159.3– 160.0 | 256.4– 257.5 | 159 | Western terminus of I-12 (exit 1A on I-12) | |||
| 160.4– 161.0 | 258.1– 259.1 | 160 | ||||
| | 161.6– 163.3 | 260.1– 262.8 | 162 | Mall of Louisiana Boulevard | Northern terminus of LA 1248; signed as exit 162A (LA 1248) and 162B (Mall of Louisiana Boulevard) both directions; exits combined westbound | |
| | 162.9– 163.8 | 262.2– 263.6 | 163 | |||
| | 164 | Pecue Lane | Construction on a new interchange | |||
| Kleinpeter | 166.5– 167.1 | 268.0– 268.9 | 166 | |||
| Ascension | Prairieville | 172.6– 173.2 | 277.8– 278.7 | 173 | Old Jefferson Highway (LA 73) –Prairieville,Geismar | |
| Gonzales | 177.2– 177.9 | 285.2– 286.3 | 177 | |||
| 179.3– 180.0 | 288.6– 289.7 | 179 | ||||
| Sorrento | 182.3– 183.0 | 293.4– 294.5 | 182 | |||
| | 186.9 | 300.8 | 187 | Eastbound exit and westbound entrance | ||
| | 187.5 | 301.8 | Westbound exit and eastbound entrance | |||
| St. James | | 194.5– 195.1 | 313.0– 314.0 | 194 | Northern terminus of LA 641 | |
| St. John the Baptist | LaPlace | 205.6– 206.3 | 330.9– 332.0 | 206 | Northern terminus of LA 3188 | |
| 209.1– 209.8 | 336.5– 337.6 | 209 | To I-55 signed eastbound only | |||
| Bonnet Carré Spillway | 209.2 | 336.7 | West end ofI-10 Bonnet Carré Spillway Bridge | |||
| 210.1 | 338.1 | 210 | 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 | Northern terminus and exits 1-1A on I-310 | ||
| Jefferson | 221.1 | 355.8 | East end ofI-10 Bonnet Carré Spillway Bridge | |||
| Kenner | 221.2– 222.0 | 356.0– 357.3 | 221 | Loyola Drive /N. O. Int'l Airport | Signed as exit 221A (N. O. Int'l Airport) and 221B (Loyola Drive) westbound; exits combined eastbound | |
| 223.1– 224.0 | 359.0– 360.5 | 223 | Economy Airport Parking / Consolidated Auto Rental | Signed as exit 223A to Williams Boulevard /32nd Street and 223B to Airport; 32nd Street (westbound exit only), Airport (eastbound entrance and westbound exit) | ||
| Metairie | 224.5– 224.7 | 361.3– 361.6 | 224 | Power Boulevard | Eastbound entrance (from southbound Power Boulevard) 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 (LA 3152 south) –Huey Long Bridge | Northern terminus of unsigned LA 3152; westbound exit to northbound Clearview Parkway also includes direct ramp onto Frontage Road | ||
| 228.1– 229.0 | 367.1– 368.5 | 228 | Causeway Boulevard –Mandeville Bonnabel Boulevard | To Mandeville viaLake Pontchartrain Causeway | ||
| 229.5– 229.7 | 369.3– 369.7 | 229 | Bonnabel Boulevard | Eastbound access is part of exit 228 | ||
| Jefferson–Orleans parish line | Metairie–New Orleans line | 230.3– 231.1 | 370.6– 371.9 | 230 | Western terminus of I-610 (exit 1B on I-610); no westbound exit | |
| North end ofPontchartrain Expressway | ||||||
| Orleans | New Orleans | 230.7– 231.1 | 371.3– 371.9 | 231B | Florida Boulevard / West End Boulevard | West End Boulevard is aone-way street; westbound exit only |
| Pontchartrain Boulevard | One-way street; eastbound entrance only | |||||
| 231.3– 232.0 | 372.2– 373.4 | 231A | Metairie Road (LA 611-9 west) / City Park Avenue | Eastern terminus of unsigned LA 611-9 | ||
| 231.9– 233.3 | 373.2– 375.5 | 232 | Carrollton Avenue | |||
| 233.8– 234.1 | 376.3– 376.7 | 234A | Eastbound exit and westbound entrance; Pontchartrain Expressway south is unsignedI-910 | |||
| 234.3 | 377.1 | 234B | Poydras Street –Superdome | Eastbound exit and westbound entrance | ||
| 234.5– 234.8 | 377.4– 377.9 | 234C | Eastbound entrance and westbound exit; future southern terminus of I-49 | |||
| 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 | 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 (LA 3021) | No eastbound entrance/exit connecting with southbound Elysian Fields Avenue or westbound entrance from northbound Elysian Fields Avenue | ||
| 238.0– 238.3 | 383.0– 383.5 | 238B | Eastern terminus of I-610; eastbound entrance and westbound exit | |||
| 238A | Franklin Avenue | Eastbound entrance and westbound exit | ||||
| 238.5– 239.2 | 383.8– 385.0 | 239 | Louisa Street / Almonaster Boulevard | Split into exits 239A (South/East) and 239B (North/West) eastbound; Almonaster Boulevard not signed westbound | ||
| 238.9– 240.2 | 384.5– 386.6 | High Rise Bridge overInner Harbor Navigation Canal (or 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 | ||||
| 241.5– 241.9 | 388.7– 389.3 | 241 | Morrison Road (LA 1253 west) | Eastern terminus of unsigned LA 1253 | ||
| 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 | 246 | Northern terminus of I-510 (exit 1A on I-510); signed as exit 246A (south) and 246B (north) | |||
| 247.9– 248.5 | 399.0– 399.9 | 248 | Michoud Boulevard | |||
| 249.3– 249.8 | 401.2– 402.0 | 249 | Bayou Sauvage National Wildlife Refuge | Connecting road never constructed; would have provided access to the Bayou Sauvage National Wildlife Refuge | ||
| 250.7– 251.3 | 403.5– 404.4 | 251 | Bayou Sauvage National Wildlife Refuge | Closed; serves gravel road open to authorized traffic only | ||
| 254.2– 254.9 | 409.1– 410.2 | 254 | ||||
| Lake Pontchartrain | 254.8– 260.4 | 410.1– 419.1 | Frank Davis "Naturally N'Awlins" Memorial Bridge (or I-10 Twin Span Bridge) | |||
| St. Tammany | | 260.9– 261.7 | 419.9– 421.2 | 261 | Lakeshore, Oak Harbor | |
| Slidell | 263.2– 263.7 | 423.6– 424.4 | 263 | |||
| 264.8– 265.3 | 426.2– 427.0 | 265 | ||||
| 265.9– 266.4 | 427.9– 428.7 | 266 | ||||
| 267.1– 268.2 | 429.9– 431.6 | 267 | Eastern terminus of I-12; exits 85A-C on I-12; southern terminus of I-59; exits 1B-C on I-59; signed as exits 267A (I-59) and 267B (I-12) | |||
| Pearl River | 273.1– 273.6 | 439.5– 440.3 | Louisiana–Mississippi line | |||
| 273.6 | 440.3 | Continuation into Mississippi | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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