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Mississippi Oversize and Overweight Permits

Mississippi Maximum Load Limits Before a Permit is Required:

  • Length: 53 feet

  • Width: 8 feet 6 inches

  • Height: 13 feet 6 inches

  • Weight: 80,000 pounds GVW

  • Overhang: 3 feet at the front, up to 14 feet at the rear

How Much Do Trucking Permits Cost in Mississippi?

  • Mississippi Permit Fees:

  • Single Trip Oversize Permit: $10

  • Single Trip Overweight Permit: $0.05 per mile per 1,000 pounds over the 80,000-pound limit

  • Special Heavy Haul Annual Permit: $4,500 per pulling unit for excess weight

  • Annual Overwidth Blanket Permit (for loads exceeding 14 feet): $100

  • Annual Continuous Movement Overlength Trailer Permit: $100 per company

  • Annual CMSI Permit: $500 per company

  • Annual Timber Industry Two-Piece Load Blanket Permit: $200

  • Pre-Numbered Permit Book for Oversize Manufactured Housing: $500 per book (each book contains 50 permits, $10 per permit)

Mississippi Oversize and Overweight Permit Limits

Maximum Load Limits with a Permit in Mississippi:

  • Single Axle: 20,000 pounds

  • Tandem Axles: 48,000 pounds

  • Tridem Axles: 57,000 pounds

  • Quad Axles: 64,000 pounds

  • Five Axles: 113,000 pounds

  • Six Axles: 123,000 pounds

  • Seven Axles: 128,000 pounds

  • Eight Axles: 141,000 pounds

Maximum Dimensions with a Permit in Mississippi:

  • Max Length: 120 feet

  • Max Width: 20 feet

  • Max Height: 17 feet

Learn More About Super Load Permits in Mississippi 

Mississippi Superload Criteria:

  • Weight: Exceeds 141,000 pounds gross

  • Length: Over 120 feet

  • Width: Over 20 feet

  • Height: Over 15 feet 7 inches

Notes: It’s essential to coordinate closely with the Mississippi DOT. They strive to categorize shipments correctly and issue appropriate permits.

When Pilot Cars or Escort Vehicles Are Needed in Mississippi

Escort Vehicle or Pilot Car Requirements for Oversize or Heavy-Haul Loads in Mississippi

Length:

  • Over 95 feet: Requires 1 pilot car or escort vehicle. Certain routes may need 2.

  • Over 105 feet: Requires 1 front pilot car and 1 rear escort vehicle.

Width:

  • Over 10 feet wide (during night travel): Requires 1 escort vehicle.

  • Over 12 feet 11 inches: Requires 1 pilot car or escort vehicle.

  • Over 16 feet: Requires 1 front pilot car and 1 rear escort vehicle.

Height:

  • Over 14 feet: May require 1 pilot car with a height pole, depending on the route.

  • Over 15 feet 7 inches: Requires a route survey; some routes may also need a lead pilot car.

  • Over 16 feet: Requires 1 lead pilot car equipped with a height pole.

Overhang:

  • Over 15 feet in the front: Requires 1 lead pilot car.

  • Rear overhang: May require a chase escort vehicle; on some routes, a lead pilot car may be needed instead.

Detailed Reference:

  • Length: Routes and lane conditions determine if escort vehicles are required for shipments over 95 feet. Shipments exceeding 105 feet typically require both a lead pilot car and a rear escort vehicle.

  • Width: Night travel with loads over 10 feet wide requires an escort vehicle. On 2-lane roads, shipments over 13 feet wide require a front pilot car, while 4-lane roads require a rear escort vehicle.

  • Height: For shipments over 15 feet 7 inches, a route survey is mandatory. Shipments exceeding 16 feet require a lead pilot car equipped with a height pole.

Note:
In some cases, a rear escort vehicle can be replaced with two amber lights (5 inches) mounted at the rear of the shipment. A monitoring system in the truck cab must ensure both lights are operational.

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