What is Heavy Haul Trucking? Complete Guide to Oversize Load Transport

Heavy haul trucking is a specialized segment of the transportation industry that moves cargo exceeding standard legal size and weight limits. If you’re shipping construction equipment, industrial machinery, wind turbine components, or any oversized freight, understanding heavy haul trucking is essential for a successful move.

What Qualifies as Heavy Haul?

In the United States, standard legal limits for commercial trucks are:

• Width: 8.5 feet (102 inches)
• Height: 13.5 feet (varies by state)
• Length: 48-53 feet for trailers
• Weight: 80,000 pounds gross vehicle weight (GVW)

Any load exceeding these dimensions requires oversize load permits and is classified as heavy haul, oversize, or over-dimensional freight. Extremely heavy or wide loads may be classified as superloads, requiring additional planning and permits.

Types of Heavy Haul Freight

Heavy haul trucking handles diverse cargo across multiple industries:

Construction Equipment

• Excavators and bulldozers
• Cranes and boom trucks
• Concrete mixers and pavers
• Pile drivers and drilling equipment

Industrial Machinery

• Transformers and generators
• Manufacturing equipment
• CNC machines and presses
• Turbines and compressors

Energy Sector Equipment

• Wind turbine blades, nacelles, and towers
• Oil and gas drilling equipment
• Pipeline sections
• Solar farm components

Agricultural Equipment

• Combines and harvesters
• Large tractors
• Grain bins and silos
• Irrigation equipment

Heavy Haul Equipment Types

Professional heavy haul companies use specialized trailers designed for oversized cargo:

Lowboy Trailers

Lowboys feature a dropped deck that sits just 18-24 inches off the ground, ideal for tall equipment like excavators. The low deck height maximizes vertical clearance while staying within legal limits.

RGN (Removable Gooseneck) Trailers

RGN trailers allow the front to detach, creating a ramp for self-loading equipment. These are essential for tracked machinery that can drive onto the trailer.

Step Deck Trailers

Also called drop decks, these trailers have a upper and lower deck section, providing more height capacity than standard flatbeds while offering easier loading than lowboys.

Multi-Axle Trailers

For extremely heavy loads, multi-axle configurations (9, 13, 19, or more axles) distribute weight across more tires, reducing ground pressure and meeting bridge weight restrictions.

Extendable Trailers

Stretch trailers extend to accommodate long loads like bridge beams, wind turbine blades, or industrial piping that exceeds standard trailer lengths.

Heavy Haul Permit Requirements

Transporting oversize loads requires permits from each state the shipment travels through. Permit requirements vary but typically include:

Single Trip Permits

Issued for one specific route and timeframe, single trip permits are common for occasional heavy haul shipments.

Annual Permits

For frequent shippers, annual permits cover multiple moves within a year, often with dimension restrictions.

Superload Permits

Loads exceeding approximately 16 feet wide, 16 feet tall, 150 feet long, or 200,000 pounds require superload classification with additional requirements:

• Bridge analysis studies
• Route surveys
• Utility coordination for power line lifts
• Police escorts in some jurisdictions

When Do You Need Pilot Cars?

Pilot car services (escort vehicles) are required when loads exceed certain thresholds:

• Width over 12-14 feet: One pilot car typically required
• Width over 14-16 feet: Front and rear escorts often required
• Extremely wide loads (16+ feet): May require additional escorts

Pilot cars travel ahead and behind the load, warning traffic, measuring clearances, and communicating with the driver about obstacles.

How to Choose a Heavy Haul Company

Selecting the right heavy haul trucking company is crucial for a successful shipment. Consider these factors:

Experience and Specialization

Look for companies with proven experience in your specific type of cargo. A company that regularly moves wind turbine components has different expertise than one specializing in mining equipment.

Licensing and Insurance

Verify the company holds proper DOT authority, MC numbers, and adequate insurance coverage. Heavy haul typically requires $1-2 million in cargo insurance.

Permit Capabilities

The best heavy haul companies handle all permit procurement in-house. This ensures proper routing and compliance across multiple states.

Equipment Inventory

Ensure the company has appropriate trailers for your load. Ask about their fleet composition and availability.

Safety Record

Check the company’s DOT safety rating and CSA scores. A strong safety record indicates professional operations.

Communication

Choose a company that provides regular updates and has knowledgeable staff who can answer technical questions about your shipment.

Heavy Haul Trucking Costs

Heavy haul transportation costs depend on multiple factors:

Distance

Most heavy haul companies charge per mile, typically ranging from $3-$15+ depending on load characteristics.

Load Specifications

Heavier and wider loads cost more due to:

• Increased fuel consumption
• More expensive permits
• Additional pilot cars required
• Specialized equipment needs

Route Complexity

Routes requiring bridge analyses, utility coordination, or road closures add significant costs.

Timing

Expedited shipments cost more than standard timing due to rush permit fees and scheduling demands.

Typical Cost Ranges

• Standard heavy haul: $3-$8 per mile
• Overwidth loads: $6-$12 per mile
• Superloads: $10-$20+ per mile

Always request detailed quotes that include all fees, permits, and escort services.

The Heavy Haul Transport Process

Understanding the process helps you plan effectively:

1. Initial Quote Request

Provide accurate dimensions, weight, origin, destination, and timeline to receive an accurate quote.

2. Route Planning

Engineers plan the optimal route considering:

• Bridge weight limits
• Height restrictions
• Road width constraints
• Turning radius requirements
• State travel restrictions

3. Permit Acquisition

The transport company obtains all required permits, typically taking 24-48 hours for standard loads and 1-2 weeks for superloads.

4. Equipment Assignment

Based on your cargo, the company assigns appropriate trailers and tractors.

5. Load Securement

Professional heavy haul companies follow strict securement protocols using chains, straps, and specialized blocking.

6. Transport Execution

The shipment moves according to permit stipulations, with pilot cars providing safety oversight.

7. Delivery and Offloading

Many heavy haul companies coordinate crane services or rigging for offloading at the destination.

Why Choose Everdauer Heavy Haul?

Everdauer Heavy Haul provides comprehensive heavy haul trucking services across 49 states and Canada:

• Experienced team with decades of heavy haul expertise
• Complete permit services handled in-house
• Modern fleet including lowboys, RGNs, and multi-axle configurations
• Certified pilot car network nationwide
• $2 million cargo insurance for your peace of mind
• 24/7 dispatch for urgent shipments
• Transparent pricing with no hidden fees

Whether you’re moving a single excavator or coordinating a multi-load wind farm project, our team delivers reliable heavy haul transport solutions tailored to your needs.

Get Your Free Heavy Haul Quote

Ready to ship your oversize load? Contact Everdauer Heavy Haul for a free, detailed quote:

• Call: (414) 600-3636
• Online: Request a Quote

Our team responds within one hour with competitive pricing and expert guidance for your heavy haul trucking needs.