Alaska Oversize Permits

Alaska Oversize Permits & Escort Information

WE ARE NOT A PERMIT SERVICE NOR DO WE ARRANGE PERMITS FOR CARRIERS.  THIS IS STRICTLY JUST FOR INFORMATIONAL PURPOSES.  WE DO NOT ENSURE THE ACCURACY OF THE BELOW INFORMATION SO BE SURE TO READ YOUR PERMIT SHEETS CAREFULLY!

Alaska Department of Transportation
Phone Number: (907) 365-1200

PERMITS: Alaska oversize permits are valid for three days, but more time may be requested for distance or weather related issues.

OPERATING TIME: Daylight only (one-half hour before sunset to one-half hour after sunset), Monday through Saturday.  10′ wide and up to 16′ high and 85′ long may travel anytime. No Sunday travel.

LEGAL DIMENSIONS

Length:

  • 48′ semi-trailer
  • 75′ overall

but 53′ semi-trailers with no overall length limit are legal on designated highways if kingpin to center of rear group does not exceed 41′.

Overhang: 3′ front, 4′ rear.

Width: 8’6″

Height: 15′

Weight: GVW not specified.

  • Single – 20,000 (8′-1″ min. spacing)*
  • Tandem – 38,000
  • Tridem – 42,000
  • Quad – 50,000

*Note: Spread axle groups cannot carry over about 10,000 pounds per axle in British Columbia.

ROUTINE PERMIT LIMITS

Length: Depends on route of travel, distance and bridges to be crossed.

Width: Depends on route of travel, distance and bridges to be crossed.

Height: Depends on route of travel, distance and bridges to be crossed.

Weight: 150,000 Gross

  • Single – 30,000
  • Tandem – 56,000
  • Tridem – 70,000
  • Quad – 80,000

ESCORTS

Length:

  • Over 85′ – 1 escort
  • over 100′ – 2 escorts.

Overhang:

  • Over 10′ rear – 1 escort (can use extended light bar for up to 20′ in lieu of escort)
  • over 35′ – 2 escorts

Width:

  • Over 10’– 1 escort
  • over 12′ – 2 escorts
  • over 14′ – minimum of 3 escorts.

Height: Not specified

Weight: When special bridge crossing conditions such as straddling center line are enacted – 2 escorts.

Miscellaneous: Permits not issued for divisible loads.

SIGNS, FLAGS & LIGHTS: “Oversize” signs required on any wide load. Flags are required on overwidth loads/vehicles and on overhangs. Signs or flags are not required for movements that are overweight only

SEASONAL LOAD (WEIGHT) RESTRICTIONS: Spring thaw weight restrictions may restrict weights to 85%, 75%, or even 50% of normal allowed weights during spring thaw conditions. These may be enacted approximately between March and June each year, depending on routes and weather conditions.

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