Mississippi Overweight/Oversize Permits

Mississippi Overweight PermitsPermit Types

Obtain Mississippi oversize/overweight permits by calling (888) 799-8858.

1. Single-Trip Permits

Valid for 3 days.

  • Oversize – Max dims: 120′ length, 15’6″ height, 16’11” width.
  • Overweight – Max 189,999 lbs.
  • Oversize/Overweight – Max dims: 120′ length, 15’6″ height, 16’11” width, 189,999 lbs.
  • Sealed Container – Max 95,000 lbs.
  • House Moves – The customer must phone the district permit office in the district where the house move permit route begins in order to obtain a permit.
  • Dirt Pan In-Tow – Tractors with dirt pans. Max 16′ width.
  • Superload – Over 120′ length, 15’6″ height, 16’11” width, and 189,999 lbs.
  • Timber Industry with 12′ Rear Overhang – Max dims: 99′ length, 53′ long trailer, 12′ rear overhang.
  • Timber Industry Two-Piece Load – For timber industry equipment. Max 14′ width, 100,000 lbs.

2. Annual Permits

  • 57′ Box Van Trailer Blanket – Max dims: 99′ length; legal width, height, and weight. Company-specific.
  • Forestry Blanket – Max dims: 99′ length, 14′ width, 14′ height, 100,000 lbs. Truck-specific.
  • Hay Blanket – Max dims: 99′ length, 10’6″ width, 14′ height, 53′ long trailer, legal weight. Company-specific.
  • Over Length Truck and Trailer Blanket – Max dims: 99′ length; legal width, height and weight. The load must be non-divisible or the hauling multiple items cannot create an additional over-dimension. Company-specific.
  • Oversize Blanket – Max dims: 120′ length, 14′ width, 14′ height, 14’11” rear overhang, legal weight. The load must be non-divisible or the hauling multiple items can not create an additional over-dimension. Company-specific.
  • Pole Blanket – Max dims: 120′ length, 40′ rear overhang, legal width, height, weight. For unprocessed poles, the load must travel on the same route. Company-specific.
  • Special Heavy Equipment Blanket – Max dims: 99′ length, 14′ width, 99′ length, 150,000 lbs. Truck-specific.
  • Timber Industry 12′ Rear Overhang Blanket – Max dims: 99′ length, 53′ long trailer, 12′ rear overhang; legal width, height and weight. For logs. Truck-specific.
  • Harvest Permit – For sand, gravel, fill dirt, agricultural products, and unprocessed forestry products. Max 84,000 lbs. Truck-specific.
  • Port Permit – For agricultural products. Max 100,000 lbs. Must travel on the same route. Truck-specific.

OPERATING TIME

One-half hour after sunrise to one-half hour before sunset, Monday through Saturday, with no Sunday travel allowed. In addition, 24-hour movement (including Sunday) is now allowed for loads not exceeding 12′ wide, 13’6″ high, 99′ overall length, 150,000 lbs. GVW, and 4′ rear overhang. However, when the load is over 10′ wide, an escort is required for night travel.

LEGAL DIMENSIONS

Width: 8’6”
Weight: 80,000 lbs. gross weight

  • Single – 20,000 lbs.
  • Tandem – 34,000 lbs.
  • Tridem – 42,000 lbs.
Length:
  • 53’0” trailer
  • 99’ overall length
Overhang:

 With a trailer up to 53’

  • 3’ front
  • 14’11” back (28′ forest products)
Height: 13’6”

PERMIT LIMITS

Width: 16’
Weight:
  • Single – 20,000 lbs.
  • Tandem – 48,000 lbs.
  • Tridem – 57,000 lbs. (60,000 lbs. on Interstates)
Length: 120’
Height:
  • 15’6” (over 15’7″ requires a route survey)
  • 16’ (over 16′ requires a route survey, utility company letters, and a special approval.)

You can also obtain any trip and fuel permits you may need with our sister site!

ESCORTS

On All Highways:

Width over 10’ wide at night needs 1 escort and flashing amber
lights 
Width over 12’ needs 1 escort
Width over 16’ needs 2 escorts
Length over 99’ needs 1 escort (2 escorts on certain routes)
Length over 105’ needs 2 escorts
Overhang(rear or/and front) over 15’ will need 1 escort
Height over 15’7” will need a route survey

The Mississippi DOT might require an escort vehicle with a high pole for certain routes if conditions apply.

Note: Rear escorts for width may be replaced by 2-5” flashing amber lights sufficient for 500’ of visibility mounted approximately 6’ above the road surface on the rear corners of the load. Control of the lights must be inside the towing vehicle with the device to alert the driver in the event of a malfunction.

SIGNS, FLAGS & LIGHTS

“Oversize Load” signs are required for all loads exceeding 12’ wide. Flags are required on all corners of loads (mounted at a height of approximately six feet above the pavement) on loads exceeding 10’ wide. Loads over 12′ in width require flashing amber lights mounted on the rear of the load and flags on the front corners of the load. Overlength loads and overhangs in excess of 4’ must be flagged.

Obtain Mississippi oversize/overweight permits calling at (888) 799-8858.