West Coast Carriers — Heavy Haul Trucking
HEAVY HAUL TRUCKING
ALL 48 STATES AND CANADA
Oversize and overweight transport. Permits, pilot cars, and route surveys handled in all 48 states. Quote within the hour.
What Is Heavy Haul Trucking?
Heavy haul trucking is the specialized transport of freight that exceeds federal legal weight and dimension limits. Any load over 80,000 lbs gross vehicle weight, 8.5 feet wide, 13.6 feet tall, or 53 feet long requires oversize and overweight permits, specialized equipment, and often pilot car escorts before it can legally move. West Coast Carriers manages every piece of that process — permits, equipment, routing, escorts, and real-time coordination — so you have a single point of contact from quote to delivery.
What Qualifies as Heavy Haul
Federal legal limits are 80,000 lbs GVW, 8.5 ft wide, 13.6 ft tall, and 53 ft long. Any load exceeding one or more of these limits requires at least one state-issued oversize or overweight permit before the truck can move. Most heavy haul loads exceed several limits simultaneously.
Why Heavy Haul Is Complex
Every state issues its own permits with different rules, fees, and travel windows. Routes must be pre-approved, bridges checked for weight capacity, and utility lines identified for height clearance. Lead times run 3–14 business days — significantly longer than standard flatbed moves.
Who Ships Heavy Haul
Construction, mining, oil and gas, wind energy, industrial manufacturing, aerospace, and government infrastructure projects all regularly require heavy haul transport. The common thread: equipment or components too large or heavy to disassemble, crate, and ship via standard freight.
Heavy Haul vs. Standard Flatbed
Standard flatbed covers legal loads. Heavy haul covers everything that exceeds legal limits. The difference is not just equipment — it is permitting complexity, routing, insurance, and logistics management that standard carriers are not equipped to handle.
| Feature | Standard Flatbed | Heavy Haul |
| Max cargo weight | ~48,000 lbs | 80,000–500,000+ lbs |
| Permits required | None | Required in every state on route |
| Trailer types | 48/53 ft flatbed, step deck | Lowboy, RGN, multi-axle, stretch |
| Pilot cars | Not required | Required above width/height thresholds |
| Typical lead time | 24–48 hours | 3–14 business days |
| Route survey | Not required | Required for most complex moves |
| Best for | Palletized goods, machinery under 48K lbs | Construction equipment, transformers, industrial components |
Heavy Haul Equipment & Trailer Types
Matching the right trailer to the load is the first decision in any heavy haul move. The wrong equipment adds cost, creates compliance risk, and can make the load unmovable on the approved route. Our team specifies equipment before we quote — not after.
Standard Lowboy
24-inch deck height. 48–53 feet long. Capacity up to approximately 80,000 lbs on a standard two-axle configuration. Ideal for excavators, bulldozers, motor graders, and rubber-tired construction equipment. The most common trailer in heavy haul.
Removable Gooseneck (RGN)
The gooseneck detaches, lowering the front of the trailer to ground level — deck height as low as 18 inches. Enables drive-on, drive-off loading for wheeled equipment. Multi-axle RGN configurations handle up to 150,000 lbs.
Multi-Axle Hydraulic Platform
Modular trailers with self-steering axles for extreme overweight loads — industrial reactors, large generators, pressure vessels, and bridge girders. Combined configurations carry 200,000 to 1,000,000+ lbs when required.
Stretch RGN / Extendable Lowboy
Extends to accommodate long loads — wind turbine tower sections, steel beams, bridge girders, and oil field pipe racks. Can reach 100+ feet extended. Requires additional length permits in most states and careful blade tip clearance routing.
Double Drop (Beam Trailer)
Two deck drops create an extremely low well section — typically 18 to 20 inches off the ground — for tall machinery that cannot clear standard overpass heights. Used for tall industrial equipment, large compressors, and warehouse racking systems.
Jeep & Booster Axle Combos
Auxiliary axles added to the front (jeep dolly) or rear (booster) of a trailer distribute gross weight across more axle groups, reducing per-axle load to stay within bridge formula limits. Required when weight permits specify axle-load restrictions.
Oversize & Overweight Permit Thresholds
Permit requirements are determined by a load's width, height, length, and gross vehicle weight. Higher classifications require more documentation, longer lead times, and more expensive escort arrangements. Exact thresholds vary by state — these are general US benchmarks.
| Classification | Max Width | Max Height | Max GVW | Typical Requirements |
| Legal (No Permit) | Up to 8.5 ft | Up to 13.6 ft | Up to 80,000 lbs | No permits required |
| Oversize Class I | 8.5–12 ft | 13.6–14.5 ft | 80,001–120,000 lbs | State OS/OW permits per state on route |
| Oversize Class II | 12–14.5 ft | 14.5–15.5 ft | 120,001–150,000 lbs | Multi-state permits, 1 pilot car |
| Oversize Class III | 14.5–16 ft | 15.5–16.5 ft | 150,001–180,000 lbs | Engineering survey, 2 pilot cars |
| Superload | 16+ ft | 16.5+ ft | 180,000+ lbs | Full route survey, utility coordination, law enforcement escort |
Exact thresholds vary by state. Travel hour restrictions (daylight-only, weekday-only) commonly apply at Class II and above.
How Heavy Haul Shipping Works
Heavy haul moves do not work like standard freight. Every step has dependencies — permits must be approved before routing, routing confirmed before dispatch, and pilot cars staged before the truck moves. Here is the sequence we follow on every move.
Submit Load Specifications
Provide total dimensions (length, width, height), gross weight, commodity type, origin, and destination. The more detail provided upfront, the faster we can route, permit, and quote accurately.
Route Survey & Permit Filing
We determine the legal route, identify weight-restricted bridges, flag overhead utilities requiring clearance, and file OS/OW permits with each state highway department along the path.
Equipment & Carrier Matching
We match your load to the correct trailer type and a vetted carrier with confirmed access to the right equipment and documented heavy haul experience — not just general flatbed experience. Learn more about our flatbed and step deck services for loads within legal limits.
Pilot Car Coordination
We arrange certified pilot car operators for every state that requires them. State certification requirements vary significantly — we track requirements per state and coordinate timing with the carrier's approved travel window.
Move Execution
Real-time communication with the carrier during transit. Road closures, weather delays, permit timing conflicts, and unexpected restrictions are managed proactively. Shippers receive updates at key checkpoints — not just at delivery.
Delivery & Documentation
Signed delivery confirmation, bill of lading, and permit copies provided at close of move. Documentation is organized and available for your project records — important for construction compliance and equipment insurance purposes.
How We Vet Heavy Haul Carriers
General flatbed carriers are not heavy haul carriers. The experience gap is significant — and the consequences of using the wrong carrier on an oversized move range from permit violations and fines to equipment damage and road shutdowns. Every heavy haul carrier in our network clears these six checkpoints before dispatch.
FMCSA-Verified Authority
Active MC and DOT authority verified through FMCSA's SAFER database. No conditional, unsatisfactory, or out-of-service safety ratings accepted at any point — not just at onboarding.
Heavy Haul Equipment Confirmation
Carriers must document ownership of or consistent access to the specific trailer type required — lowboy, RGN, multi-axle, or stretch. A 53-foot flatbed does not qualify a carrier for heavy haul.
Oversize Move History
We verify documented OS/OW move experience before placing any carrier on a heavy haul load. Carriers new to oversized freight are not used regardless of general safety record or years in operation.
Pilot Car Operator Certification
All pilot car operators must hold the correct state-issued certifications for each state on the route. Requirements vary significantly by state — we track current requirements and verify before every move.
Elevated Insurance Minimums
Heavy haul loads require cargo and liability coverage above standard freight thresholds. We verify certificate of insurance naming West Coast Carriers and confirm coverage limits before dispatch on every load.
Continuous Safety Monitoring
Carrier safety scores are monitored on an ongoing basis — not just at onboarding. Any carrier showing CSA score deterioration is removed from active dispatch before the next heavy haul load.
Nationwide Heavy Haul Coverage
West Coast Carriers coordinates heavy haul transport across all 48 contiguous states. Our carrier network includes specialists experienced in the unique routing challenges of each region, from mountain pass restrictions in the Pacific Northwest to the dense utility corridors of the Northeast and the industrial port lanes of the Gulf Coast.
Pacific Northwest & Mountain West
Washington, Oregon, Idaho, Montana, Wyoming. Mountain pass restrictions, seasonal weight limits on thaw-period roads, and state-specific OS/OW requirements. WSDOT and ODOT permit coordination on both sides of the Cascades. Need over dimensional freight in the Northwest? We handle that too..
California
Caltrans oversight, LA Basin urban routing, and Rim of the Valley utility coordination. California has some of the most detailed OS/OW permitting requirements in the country. We have carriers with documented California heavy haul experience.
Gulf Coast & Texas
Major industrial corridor for refinery equipment, pressure vessels, and offshore platform components. Texas operates its own TxDOT permitting structure. We file directly and know the requirements, not through a third-party permit service.
Midwest Wind Energy Corridor
Wind turbine tower sections, nacelles, and blades require stretch RGN specialists and blade tip clearance routing across Iowa, Illinois, Minnesota, Kansas, and Texas. We cover the full wind project logistics corridor.
Northeast Industrial
Dense population, aging infrastructure, and significant state-by-state variation in OS/OW rules make the Northeast the most administratively complex heavy haul region. We cover all Northeast states with regionally experienced carriers.
Southeast Construction
Active construction market across Florida, Georgia, South Carolina, and North Carolina with consistent demand for excavator, crane, and paving equipment moves supporting infrastructure and commercial development projects.
Why Shippers Choose West Coast Carriers
Heavy haul is a specialty service that demands more than a truck and a permit. It takes experience, established carrier relationships, and the operational discipline to manage every detail before the wheels roll.
Heavy Haul Trucking FAQ
Common questions from shippers coordinating their first heavy haul move or adding heavy haul to an existing freight program.
What is considered a heavy haul load?
Any load that exceeds federal legal limits — 80,000 lbs gross vehicle weight, 8.5 feet wide, 13.6 feet tall, or 53 feet long — is classified as oversize or overweight and requires permits before it can legally move on public roads. Most heavy haul loads exceed more than one legal limit at the same time.
How far in advance do I need to book heavy haul transport?
Plan for 3–14 business days minimum from the time you provide complete load specifications. Permit processing time varies by state — some issue same-day, others require 5–7 business days. Complex superloads requiring route surveys and utility coordination can take 3–6 weeks. The earlier you engage us, the more flexibility we have on routing and carrier options.
Do you handle permit filing in every state?
Yes. West Coast Carriers files OS/OW permits in all 48 contiguous states. Multi-state moves require a permit from each state the load passes through — we coordinate the full permit package so you do not need to manage individual state filing requirements.
What is a pilot car and when is it required?
A pilot car is a lead or chase vehicle that drives ahead of or behind an oversized load to warn traffic, check clearances, and comply with state escort requirements. Width, height, and weight all trigger pilot car requirements — thresholds vary by state. Some states require two pilot cars or a law enforcement escort for the largest loads. Pilot car operators must hold state-specific certifications.
What is the difference between a lowboy and an RGN?
A lowboy has a fixed front section — loading requires a ramp or crane. A Removable Gooseneck (RGN) has a detachable front section that lowers the trailer to ground level, allowing wheeled equipment to drive directly onto the deck. RGNs are preferred for equipment that cannot be craned, while lowboys are more widely available and typically less expensive per move.
What is a superload?
A superload is any load exceeding the upper threshold for standard oversize classification — typically over 16 feet wide, 16.5 feet tall, or 180,000 lbs GVW, though thresholds vary by state. Superloads require a full engineering route survey, utility line coordination, and in many cases a law enforcement escort. Lead times run 3–6 weeks minimum.
Can you move construction equipment that is still operational?
Yes. Most heavy haul moves involve operational equipment — excavators, cranes, graders, and pavers that will be put immediately to work at the destination. Equipment does not need to be decommissioned or drained for heavy haul transport in most cases. Notify us if the equipment has any special fluid or hazmat considerations so we can confirm carrier and permit requirements.
How is heavy haul pricing calculated?
Heavy haul pricing includes a base linehaul rate per mile plus permit costs for each state on the route, pilot car fees per car per state, route survey costs where applicable, and any specialized loading assistance. Permit costs alone can range from $50 to $500+ per state depending on load classification. Provide complete and accurate dimensions and weight when requesting a quote — estimates based on incomplete specs are rarely accurate.
Which states have the most restrictive heavy haul regulations?
California, New York, and Pennsylvania are consistently the most complex due to infrastructure age, population density, and utility corridors. California's Caltrans permitting is especially detailed for loads approaching superload thresholds. Western mountain states including Colorado, Montana, and Washington add complexity through seasonal road restrictions and mountain pass weight limits that can change on short notice.
Can you handle multi-axle extreme overweight moves over 200,000 lbs?
Yes. Through our network of specialized carriers with hydraulic platform and modular trailer capability, we coordinate multi-axle moves exceeding 200,000 lbs. These moves require engineering sign-off, detailed route surveys, and significantly longer lead times. Contact us early in your project timeline — multi-axle extreme overweight moves are not last-minute freight.
What information do I need to get a heavy haul quote?
Provide: total length including any extensions, maximum width, maximum height, gross weight of load plus trailer, commodity or equipment type, origin address with loading conditions (crane available, drive-on, ground load), destination address, and required delivery date. If you have the manufacturer's spec sheet, include it — it is the fastest path to accurate quoting and correct permit filing.
More Freight Services
West Coast Carriers moves freight across every equipment type and service category — all 48 states and Canada.
Flatbed & Step Deck
Open deck freight for machinery, steel, building materials, and oversized cargo within legal dimensions.
Over Dimensional Freight
Loads exceeding standard legal limits. Permit filing, route surveys, and pilot car coordination across all 48 states.
Power Only & Trailer Relocation
Tractor-only moves for customer-owned trailers. Port chassis relocation and fleet management support.
Dry Van Trucking
Enclosed trailer service for palletized, consumer, and commercial freight requiring protection from weather and theft.
Expedited Freight
Time-critical freight requiring priority routing, team drivers, or dedicated capacity. 24/7 coverage across all 48 states.
Drayage & Transload
Container moves from ports and rail yards to warehouses, distribution centers, and final-mile destinations.
Get a Heavy Haul Quote
Oversized and overweight freight requires exact specs, experienced carriers, and permit management across every state on the route. Give us your dimensions and weight — we will handle the rest.
Request a Heavy Haul Freight-Quote