Interstate 55 in Louisiana

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Interstate 55 marker

Interstate 55
Route information
Maintained by Louisiana DOTD
Length: 65.81 mi[1] (105.91 km)
Existed: 1957 (designated);
1960 (signed);
1979 (completed) – present
Major junctions
South end: I‑10 in LaPlace
 

US 51 north of LaPlace
US 51 south of Hammond
I‑12 in Hammond

US 190 in Hammond
North end: I‑55 at the Mississippi state line north of Kentwood
Location
Parishes: St. John the Baptist, Tangipahoa
Highway system
  • Louisiana Highway System
LA 54 LA 55

Interstate 55 (I-55) is an Interstate Highway that spans a total of 65.81 miles (105.91 km) in a north–south direction in the U.S. state of Louisiana.[1][2] It is located in the southeastern portion of the state and parallels the older U.S. Highway 51 (US 51) corridor from the national southern terminus at I-10 in LaPlace to the Mississippi state line north of Kentwood. Along the way it passes through the city of Hammond, where it intersects two of the state's major east–west routes, I-12 and US 190. It also serves the smaller city of Ponchatoula, as well as the towns of Amite City and Kentwood.

I-55 is a major route connecting the New Orleans metropolitan area with Jackson, Mississippi and ultimately Chicago, Illinois. New Orleans is located 21 miles (34 km) east of LaPlace on I-10. The southernmost 23 miles (37 km) of I-55, passing between Lake Pontchartrain and Lake Maurepas, are elevated as part of the Manchac Swamp Bridge, one of the longest bridges in the world.

History[edit]

In April 2010, Reader's Digest listed I-55 in Louisiana as the one of the seven worst roads in America.[3] Originally constructed in the mid-1960s using concrete, the roadway had deteriorated to the point where rehabilitation was needed in 1989-90, but problems remained. In 2010-11, Louisiana rubblized most of the concrete on the interstate from Ponchatoula to the Mississippi state line and replaced it with asphalt.[4][5]


Exit list[edit]

Parish Location Mile[2] km Exit Destinations Notes
St. John the Baptist LaPlace 0.0 0.0 I‑10 east – New Orleans Southern terminus; northbound entrance and southbound exit; Exit 210 on I-10
0.2 0.3 South end of Manchac Swamp Bridge
  0.8–
1.0
1.3–
1.6
1 US 51 to I‑10 – Baton Rouge, LaPlace South end of US 51 concurrency; northbound entrance and southbound exit
Ruddock 7.6–
8.2
12.2–
13.2
7 Ruddock
St. John the BaptistTangipahoa line GalvaAkers line 14.4–
15.2
23.2–
24.5
Bridge over Pass Manchac
Tangipahoa Manchac 15.3–
15.9
24.6–
25.6
15 Manchac
  23.0 37.0 North end of Manchac Swamp Bridge
  23.1 37.2 22 Frontage Road Northbound entrance and southbound exit
  23.5–
24.0
37.8–
38.6
23
US 51 Bus. – Ponchatoula
Southern terminus of US 51 Business
Ponchatoula 25.9–
26.5
41.7–
42.6
26 LA 22 – Ponchatoula, Springfield
Hammond 28.4–
28.9
45.7–
46.5
28 US 51 north – Hammond North end of US 51 concurrency
29.3–
29.8
47.2–
48.0
29A–B I‑12 east – Slidell
I‑12 west – Baton Rouge
Signed as Exits 29A to Slidell and 29B to Baton Rouge; Exit 38A–B on I-12
31.2–
31.4
50.2–
50.5
31 US 190 – Albany, Hammond
  32.2–
32.7
51.8–
52.6
32 LA 3234 (University Avenue) / Wardline Road Western terminus of LA 3234
Tickfaw 36.3–
36.7
58.4–
59.1
36 LA 442 – Tickfaw
Independence 40.9–
41.3
65.8–
66.5
40 LA 40 – Independence
Amite City 46.9–
47.3
75.5–
76.1
46 LA 16 – Montpelier, Amite City
  50.6–
51.1
81.4–
82.2
50 LA 1048 – Arcola, Roseland
  53.7–
54.1
86.4–
87.1
53 LA 10 – Greensburg, Fluker
  56.9–
57.4
91.6–
92.4
57 LA 440 – Tangipahoa
Kentwood 61.4–
61.8
98.8–
99.5
61 LA 38 – Liverpool, Kentwood
  66.2 106.5 I‑55 north – Jackson Northern terminus; continuation into Mississippi
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Interstate 55
Previous state:
Terminus
Louisiana Next state:
Mississippi

References[edit]

Route map: Google / Bing

  1. ^ a b Staff (October 31, 2002). "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". Route Log and Finder List. Federal Highway Administration. Retrieved June 5, 2013. 
  2. ^ a b Google Inc. "Overview Map of I-55". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?saddr=I-55+(Southern+Terminus)&daddr=30.5082838,-90.503553+to:I-55+(Northern+Terminus)&hl=en&ll=30.512583,-90.483398&spn=1.303758,2.705383&sll=30.479746,-90.507774&sspn=0.081514,0.169086&geocode=FcQSywEdCR-c-g%3BFfuE0QEdfwab-ikfmjm5ayInhjGss7qinWMH_A%3BFeUE2QEdO_6a-g&mra=dpe&mrsp=1&sz=13&via=1&t=m&z=9. Retrieved June 11, 2013.
  3. ^ Crouch, Michelle (April 2010). "The 7 Worst Roads in America". Reader's Digest 173 (1056). Retrieved 2013-01-24. 
  4. ^ Landers, Kirk (July–August 2011). "Saved by Asphalt: The Rubblization of Louisiana's I-55" (Flash). HMAT (Hot Mix Asphalt Technology) 16 (4): 24–29. Retrieved 2013-01-24. 
  5. ^ Landers, Kirk (July–August 2012). "Warm Mix Fixes I-55" (Flash). Asphalt Pavement 17 (4): 20–31. Retrieved 2013-01-24.