How to Ship a Pipelayer or Large Trencher: Transport Guide

Pipelayer and Large Trencher Dimensions and Weight

Pipelayers and large trenchers vary significantly by model and configuration. Before booking transport, gather the following specifications from the machine's documentation:

• Pipelayers: Mid-size pipelayers (e.g., Caterpillar PL61) weigh approximately 55,000–65,000 lbs. Large pipelayers (e.g., Caterpillar PL87) can weigh 80,000–100,000+ lbs. Transport width is typically 10–14 ft depending on the side boom configuration. Transport height with the boom lowered is typically 11–13 ft.
• Large chain trenchers: Full-size highway trenchers (e.g., Vermeer T1255 Commander 3, Ditch Witch RT120) weigh 60,000–90,000 lbs. Transport width is typically 10–12 ft. Transport length with the digging boom in the stowed position is typically 40–55 ft, but some models have booms that extend beyond the machine's main body even when stowed, creating an overlength condition.
• Compact trenchers: Smaller chain trenchers (e.g., Ditch Witch RT45, Vermeer RTX550) weigh 10,000–25,000 lbs and can often ship on a step-deck or flatbed without oversize permits. This guide focuses on large highway-class machines.

Trailer Selection: RGN Is the Standard

Full-size pipelayers and large trenchers require a Removable Gooseneck (RGN) trailer in virtually all cases. The RGN's detachable gooseneck creates a ground-level ramp that allows the machine to drive onto the trailer under its own power, which is the safest and most practical loading method for heavy tracked equipment.

• Standard RGN (2–3 axle): Suitable for pipelayers and trenchers up to approximately 80,000 lbs. Deck height is typically 18–22 inches, keeping the overall transport height manageable for most loads.
• Multi-axle RGN (4–5 axle): Required for pipelayers and trenchers over 80,000 lbs. Additional axles distribute weight to meet per-axle legal limits. Some very heavy pipelayers may require a jeep dolly or booster axle in addition to the trailer's standard axle group.
• Extended-length RGN: Required for machines with long booms or digging chains that extend beyond the standard trailer length. Extended trailers can accommodate loads up to 65–70 ft in overall length.

Boom and Digging Chain Management

The side boom on a pipelayer and the digging chain on a trencher are the most critical elements to manage before transport. Improper handling of these components is the leading cause of transport damage and permit violations for these machine types.

Pipelayer side boom:

• Lower the side boom to its minimum transport height and lock it in position using the machine's boom lock mechanism.
• Confirm the boom's transport height with the manufacturer's spec sheet. Some booms, even when fully lowered, extend above the machine's main body and may push the overall transport height over the 13.5 ft permit threshold.
• Secure the boom with additional chains or straps to prevent movement during transit. The boom's hydraulic cylinders should be fully retracted and locked.

Trencher digging chain and boom:

• Retract the digging boom to its minimum transport length and lock it in position.
• Secure the digging chain to prevent it from swinging or dragging during transit. Loose chains can contact the road surface or other vehicles, creating a serious safety hazard.
• If the boom extends beyond the trailer's rear in the stowed position, an overlength permit is required. In some cases, removing the boom entirely and shipping it separately on a flatbed is more cost-effective than obtaining an overlength permit for a long-distance move.

Loading Procedure

Loading a pipelayer or large trencher requires a level, stable surface and an experienced operator. Key steps include:

• Position the RGN trailer on level ground with the gooseneck detached and the ramp deployed.
• Drive the machine onto the trailer slowly, with a spotter guiding the operator to ensure proper centering and weight distribution. The machine's tracks should be centered on the trailer deck with equal overhang on each side.
• Once the machine is positioned, reattach the gooseneck and confirm it is fully locked before proceeding.
• Lower all booms, arms, and attachments to their minimum transport height.
• Engage the parking brake and place the transmission in neutral or park.

Securement Requirements

Federal regulations under 49 CFR §393.130 require a minimum of four tie-downs for equipment weighing 10,000 lbs or more. For pipelayers and large trenchers, six to eight tie-downs are standard practice due to the machines' weight and the potential for boom movement. Key securement guidelines include:

• Use Grade 70 or Grade 80 chains and binders at manufacturer-designated tie-down points. Consult the operator's manual for correct attachment locations.
• Apply anti-slip material (rubber mats or dunnage) between the machine's tracks and the trailer deck to prevent lateral movement.
• Secure the boom and digging chain separately with additional chains or straps beyond the machine's primary tie-downs.
• Inspect all tie-downs after the first 50 miles and at every fuel stop during long-distance hauls.

Permit Requirements

Full-size pipelayers and large trenchers almost universally require oversize and overweight permits. Key thresholds include:

• Weight: Federal legal limit is 80,000 lbs GVW. Most full-size pipelayers and large trenchers exceed this, requiring overweight permits in every state along the route.
• Width: Federal legal limit is 8.5 ft. Pipelayers with side booms and wide trenchers typically exceed this, requiring oversize permits. Loads over 12 ft wide require escort vehicles in most states.
• Height: Federal legal limit is 13.5 ft. Machines with tall booms may exceed this, requiring oversize permits and route surveys for low-clearance bridges.
• Length: Federal legal limit is 53 ft for a trailer. Machines with extended booms or digging chains may create overlength conditions requiring additional permits.

Cost Factors for Pipelayer and Trencher Transport

Transport costs for pipelayers and large trenchers are among the highest in the heavy equipment category due to the specialized trailers, multi-state permits, and escort requirements. Typical cost ranges include:

• Regional hauls (under 500 miles): $4,000–$10,000 depending on load class and escort requirements.
• Cross-country hauls (1,500+ miles): $10,000–$25,000 for full-size pipelayers requiring multi-axle trailers and multiple escort vehicles.
• Permit fees: $300–$3,000 total depending on the number of states and load class.
• Escort vehicles: $2.50–$4.00 per mile per pilot car. Wide loads often require two escorts.

Need to move a pipelayer or large trencher? IronHaul Logistics specializes in underground utility and pipeline equipment transport nationwide. Call (208) 495-2260, email [email protected], or submit our online quote form for a free, no-obligation estimate. We handle all permits, routing, and escort coordination.