Texas

Texas interstate GVW limit: 80,000 lbs. State highways allow up to 84,000 lbs with proper axle configuration. Per-axle limits: Single axle 20,000 lbs, Tandem axle 34,000 lbs, Tridem axle 42,000 lbs. Federal bridge formula on interstates; Texas allows up to 84,000 lbs on state highways. Enforcement tolerance: 5% tolerance on individual axle weights.

Height: 14 ft. Width: 8 ft 6 in. Trailer length: 59 ft (semitrailer). Overall combination length: 65 ft combination.

Oversize/overweight permits through TxDMV Motor Carrier Division online system Fees: Single-trip: $30; Annual: $150+. Louisiana oversize/overweight permits are honored under reciprocal agreements. Verify specific terms before travel. Apply online: https://www.txdmv.gov/motor-carriers/oversize-overweight-permits Enforcement: DPS and TxDMV enforcement; weigh stations; fines per pound overweight starting at $100.

Agricultural: Agricultural vehicles exempt on state highways; cotton module movers have special provisions; livestock haulers exempt within 150 miles. Timber/Forestry: Timber vehicles allowed higher weights on designated routes.

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official Texas DOT page at https://www.txdmv.gov/motor-carriers/oversize-overweight-permits. Contact the Texas Department of Motor Vehicles for specific routing questions.