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Louisiana Oversize Permits Information


Louisiana Oversize Permits can be ordered for the number of days needed. Driver must have a DOT permit prior to entering the state.

Operating Time

Travel is allowed from sunrise to sunset seven days a week; except for restrictions below. Over 14′ wide may only travel until noon on Saturday. Overweight-only and not over 65′ overall length may have continuous travel.


Permit loads may not cross any bridge spanning the Mississippi River in the New Orleans area or be within 2 miles of such bridge from 6:30 a.m. – 9:00 a.m. and from 3:30 p.m. – 6:00 p.m., Monday through Friday. Loads over 12′ wide may not travel on the Interstate system through Shreveport, Monroe, Lake Charles, Baton Rouge, and New Orleans from 7:00 a.m. – 9:00 a.m. and from 3:30 p.m. – 6:00 p.m., Monday through Friday. Loads over 8’6″ wide, 14’4″ high, 70′ long and over 120,00 pounds will not be allowed to cross the US 190 Mississippi River Bridge in Baton Rouge from 6:30 a.m. – 9:00 a.m. and 3:30 p.m. – 6:00 p.m. Monday through Friday.  The restricted areas are detailed on the permit and on the provision sheets. Vehicles and loads over 16′ wide may not travel on Interstate highways in Louisiana. No travel on major holidays, and in certain areas during Mardi Gras.

Speed Limit

55 mph.

Legal Dimensions

The vehicle must have the following characteristics:

  • Width: 8’6″
  • Height: 14’ on designated highways, 13’6″ on non-designated.
  • Length: 59’6″ trailer or load on Interstate and designated highways; 65′ truck and trailer on other highways
  • Overhang: 4′ front, 8′ rear (over 59’6″ length of load on trailer needs permit on all roads).
  • Weight: 80,000 Gross (with a Tridem axle, 83,400 on Interstate & 88,000 non-Interstate, if licensed for it)
    • Interstate highway system: Single – 20,000; Tandem – 34,000; Tridem – 42,000; Quad – 50,000
    • Non-Interstate highways: Single – 22,000; Tandem – 37,000; Tridem – 45,000; Quad – 53,000

Routine Louisiana Oversize Permit Limits

  • Width: 18′
  • Height: 16’5″
  • Length: 125′
  • Weight: Single – 24,000 if GVW is 120,000 pounds or less, 20,000 if GVW exceeds 120,000 pounds; Tandem – 48,000 if GVW is up to 120,000 pounds; but 40,000 if it exceeds 120,000 pounds; Tridem – 60,000; Steer axle cannot exceed 13,000 pounds if tandem exceeds 40,000 pounds and gross weight exceeds 120,000 pounds; 5 axles – 108,000; 6 axles – 120,000; 7 axles – 132,000.

*Note: Vehicles must be registered for 88,000 to run with the Louisiana overweight permit. Loads exceeding these dimensions or with GVW exceeding 254,000 pounds are considered as Super Loads.


  • Width: Over 12′ – 1 escort pilot car; over 16′ – 1 State Police escort on 2-lane or multi-lane highways; over 18′ – 2 State Police escort.
  • Length: Over 90′ – 1 escort pilot car; over 125′ – 1 State Police escort (steerable dolly is required)
  • Height: Over 15’10” 1 escort pilot car with height pole when traveling off the interstate, Over 16’8″ may require an escort with utility lift (depends on routes). City of New Orleans (non-Interstate) – Police escort needed if not on Interstate and width over 12′, height over 13’6″, or length over 90′. Over 18′ – 2 State Police escort

Security Measures

“Oversize Load” signs are required for all loads exceeding 10′ wide, over 75′ long or exceeding legal overhang. Flags are required on all overwide loads. Flags must be placed on all four corners of the load and at any protrusions. Over-length must be flagged, no sign requirements. Rear overhang over 4′ must be flagged. NO sign or flag requirements for height only.

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