Indiana Truck Weight Limits

How much a truck can weigh in Indiana

Indiana is 80,000 lb gross, 20,000 single, 34,000 tandem on the interstate (IC 9-20-4-1). A divisible-load permit gets you to 120,000, and a special weight permit on the extra-heavy-duty highway reaches 134,000 (IC 9-20-6-2.2). Overweight tickets are graded infractions: up to $500 under 5,000 over, up to $1,000 from 5,000 to 10,000, and up to $10,000 past 10,000 lb (IC 9-20-18).

Axles, off-Interstate, and permits

• Off the Interstate: 80,000 lb; higher only by permit
• Single axle: 20,000 lb
• Tandem axle: 34,000 lb
• With a permit: 120,000 lb by overweight-divisible-load permit (IC 9-20-6-2.2); up to 134,000 lb by special weight permit on the designated extra-heavy-duty highway; the Indiana Toll Road is grandfathered for LCV combinations to about 127,400 lb.
• The 127,400 lb Toll Road grandfather figure is from 23 CFR 658 App. C and is medium-confidence; the 120,000/134,000 lb permit ceilings are confirmed in Indiana Code and INDOT rules.

Posted bridge and road limits

Local authorities and INDOT post bridges and roads with 'WEIGHT LIMIT X TONS' signs, tons being 2,000-lb short tons. The posted number overrides the legal max, so a legal 80,000-lb truck still can't cross a bridge posted below it. Running a posted structure is enforced under IC 9-20 with its own penalty, plus liability for any damage you cause.

What running heavy costs

Graded infractions under IC 9-20-18. Overweight up to 5,000 lb is a Class C infraction (up to $500); 5,000 to 10,000 lb over is Class B (up to $1,000); more than 10,000 lb over is Class A (up to $10,000), with possible registration suspension of 1-90 days. No-permit overweight loads also draw per-pound civil penalties billed to the carrier.

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