Indiana

Indiana 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. Enforcement tolerance: No general tolerance on interstates.

Height: 13 ft 6 in. Width: 8 ft 6 in. Trailer length: 53 ft (semitrailer). Overall combination length: No overall limit for tractor-semitrailer on designated network.

Oversize/overweight permits available online through INDOT permit system Fees: Single-trip: $20; Annual: $100. Alaska oversize permits are not directly honored in Indiana. You will need to obtain a Indiana-specific permit for oversize/overweight loads. Apply online: https://www.in.gov/indot/doing-business-with-indot/permits/oversize-overweight-permits/ Enforcement: Weigh stations; Indiana State Police enforcement; fines per pound overweight.

Agricultural: Agricultural vehicles exempt on non-interstate roads; grain harvest exemption allows higher weights seasonally.

Spring thaw weight restrictions on county roads. 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 Indiana DOT page at https://www.in.gov/indot/doing-business-with-indot/permits/oversize-overweight-permits/. Contact the Indiana Department of Transportation for specific routing questions.