Louisiana

Louisiana interstate GVW limit: 80,000 lbs. State highways allow up to 88,000 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; Louisiana allows higher state highway GVW with proper axle spacing. Enforcement tolerance: Limited tolerance on non-interstate highways.

Height: 13 ft 6 in. Width: 8 ft 6 in. Trailer length: 59 ft 6 in (semitrailer). Overall combination length: No overall limit for tractor-semitrailer.

Oversize/overweight permits through LaGeaux online system; annual permits require approved routes Fees: Single-trip: $20; Annual: $100+. New Mexico oversize permits are not directly honored in Louisiana. You will need to obtain a Louisiana-specific permit for oversize/overweight loads. Apply online: https://dotd.la.gov/about/office-of-operations/oversized-and-overweight-truck-permits/ Enforcement: DOTD weigh stations; State Police enforcement; per-pound fines.

Agricultural: Agricultural products exempt on state highways up to 88,000 lbs; sugarcane haulers have special provisions. Timber/Forestry: Timber vehicles allowed up to 86,600 lbs on designated state routes.

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official Louisiana DOT page at https://dotd.la.gov/about/office-of-operations/oversized-and-overweight-truck-permits/. Contact the Louisiana Department of Transportation and Development for specific routing questions.