Wisconsin

Wisconsin 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 during spring restrictions.

Height: 13 ft 6 in. Width: 8 ft 6 in. Trailer length: 53 ft (semitrailer). Overall combination length: 75 ft combination.

Oversize/overweight permits through WisDOT online permit system Fees: Single-trip: $20; Annual: $100. Pennsylvania oversize permits are not directly honored in Wisconsin. You will need to obtain a Wisconsin-specific permit for oversize/overweight loads. Apply online: https://wisconsindot.gov/pages/dmv/com-drv-vehs/mtr-car-trkr/osow-permits.aspx Enforcement: WSP and WisDOT enforcement; weigh stations; fines per pound overweight.

Agricultural: Agricultural vehicles exempt on state highways during planting and harvest; dairy operations have special provisions. Timber/Forestry: Timber vehicles allowed higher weights on designated routes.

Spring weight restrictions (March-May) reduce allowable axle weight by up to 30% on Class II highways designated by local authorities. 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 Wisconsin DOT page at https://wisconsindot.gov/pages/dmv/com-drv-vehs/mtr-car-trkr/osow-permits.aspx. Contact the Wisconsin Department of Transportation for specific routing questions.