Alaska

State Permits

PERMITS:

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

OPERATING TIME:

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

LEGAL DIMENSIONS:

Width: 8’6″

Height: 15′

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 exceeding 41′.

Overhang: 3′ front, 4′ rear.

Weight: GVW not specified. Single – 20,000 (8′ 1″ min. spacing)* Tandem – 38,000 Tridem – 42,000 Quad – 50,00080,000 Gross Single – 20,000 Tandem – 34,000 Tridem – 42,000

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

ROUTINE PERMIT LIMITS:

Width: Not specified

Height: Not specified

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

Weight: 80,000 Gross Single – 30,000 Tandem – 42,000 Tridem – 48,000

ESCORTS:

Width: Over 10′– 1 escort; over 12′ – 2 escorts; over 14′ – minimum of 3 escorts

Height: Not specified

Length: 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 100′ – 2 escorts.

When special bridge crossing conditions such as straddling centerline are enacted – 2 escorts.Overweight dozer and blade must be attached, or else hauled on separate loads if blade is detached.

SIGNS, FLAGS & LIGHTS:

When special bridge crossing conditions such as straddling centerline are enacted – 2 escorts.

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.