Alaska

Alaska interstate GVW limit: 80,000 lbs. Per-axle limits: Single axle 20,000 lbs, Tandem axle 34,000 lbs, Tridem axle 42,000 lbs. Federal bridge formula applies; some roads have posted lower limits. Enforcement tolerance: No tolerance policy.

Height: 15 ft. Width: 8 ft 6 in. Trailer length: 53 ft (semitrailer). Overall combination length: 75 ft combination.

Oversize/overweight permits required for vehicles exceeding legal dimensions Fees: Single-trip: $25; Annual: $200. Indiana oversize permits are not directly honored in Alaska. You will need to obtain a Alaska-specific permit for oversize/overweight loads. Apply online: https://dot.alaska.gov/mscve/oversize.shtml Enforcement: Weigh stations; portable scales; fines based on percent overweight.

Agricultural: Agricultural equipment exempt on local roads. Timber/Forestry: Timber exemptions on designated haul roads.

Spring breakup restrictions reduce weights on many roads March-May; posted restrictions vary by region. Check with the state DOT for current postings and dates before planning your route.

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official Alaska DOT page at https://dot.alaska.gov/mscve/. Contact the Alaska Department of Transportation and Public Facilities for specific routing questions.