Alaska Oversize Permits
ALASKA OVERSIZE PERMITS & ESCORTS INFORMATION
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.
- 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.
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
- Over 85′ – 1 escort
- over 100′ – 2 escorts.
- Over 10′ rear – 1 escort (can use extended light bar for up to 20′ in lieu of escort)
- over 35′ – 2 escorts
- 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.