Understanding Overweight Load Limits
Federal law establishes weight limits on interstate highways:
- Gross Vehicle Weight Rating (GVWR): 80,000 lbs maximum on interstate highways
- Axle Weight Limits: 20,000 lbs per single axle, 34,000 lbs per tandem axle
- Bridge Formula: Complex weight distribution rules based on axle spacing
Any load exceeding these limits requires special permits and careful axle configuration to distribute weight properly.
Permitting for Overweight Loads
Each state has its own overweight permitting requirements. R&RM LLC handles all aspects:
- Single-Trip Permits: For one-time shipments to a specific destination
- Annual Permits: For recurring shipments on established routes
- Multi-State Coordination: We manage permits across all 48 states
- Special Routing: Some permits require specific routes or time-of-day restrictions
Axle Configuration & Weight Distribution
Proper axle configuration is critical for overweight transport:
- Trailer Axle Spacing: Adjusted to comply with bridge formula requirements
- Load Placement: Weight distributed to maximize legal load limits
- Tandem vs. Single Axles: Configuration depends on total weight and state limits
- Multi-Axle Trailers: Sometimes required for heavier loads
Bridge Law & Compliance
The Federal Bridge Law limits axle weights based on spacing between axles. We ensure every load complies:
- Weight distribution optimized per the Bridge Formula
- Routes verified against bridge weight limits
- Axle spacing configured for maximum legal load
- Documentation provided for weigh stations and inspections
Common Overweight Loads
- Mining haul trucks (Komatsu, CAT, Volvo)
- Heavy construction equipment assemblies
- Industrial generators and transformers
- Compacted farm equipment and machinery
- Metal fabrications and structural components
- Custom industrial assemblies
Multi-State Routing & Compliance
Overweight loads require careful route planning to avoid weight-restricted roads and ensure compliance in every state. Our team coordinates all routing, permitting, and escort services.
See the full list of equipment we haul for details on specific machinery types.
Get Your Overweight Transport Quote
Provide us with your load weight, dimensions, pickup/delivery locations, and equipment type for an accurate quote.