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Heavy haulage · OOG trucking · Vietnam

Heavy Haulage in Vietnam: Own Lowbeds, Permits and Escorts

Heavy haulage from Vietnamese ports to site on our own lowbed fleet, with the oversize permit, route survey and escort planned by the same team.

For freight agents, EPC contractors and factories in Vietnam. · See our fleet

Heavy haulage in Vietnam: large tank on a 40' flat rack carried by a Project Shipping lowbed after discharge at Cat Lai port
Large tank on a 40′ flat rack, on our lowbed from Cat Lai port to the depot (September 2026).
62 tpayload of our own 6-axle lowbed
14.5 mdeck length, 3.2 m wide
~3.3 mflat rack width covered by our standing permit
30 mintrucking plan once we have dimensions

Heavy haulage in Vietnam is mostly a planning job. The truck is the easy part. The hard part is a permit that names the right plate and route, a bridge that can take the axle load, and a site that is open when the convoy arrives at 2 a.m.

This page shows the equipment we own, the rules that decide whether you need an oversize permit, how long each step takes, and what to send us for a firm price.

Our own heavy haulage fleet in Vietnam

We own the trailers that carry the difficult loads. When the trailer is ours, the date in our quote is a date we control.

EquipmentKey specsTypical use
6-axle lowbed (own)Deck 14.5 m · width 3.2 m · gooseneck 4 m · payload up to 62 tTanks, pressure vessels, press frames, long machinery
4-axle lowbeds × 2 (own)Payload up to 44 t · gooseneck 1.6 m high, about 4 m longOver-width flat racks, machinery, cable reels, rollers and excavators
Prime movers (own)Heavy-duty tractor units matched to each trailerPort to site, long-haul to central Vietnam and border areas
Partner equipmentHydraulic modular trailers, SPMT, mobile cranes 25–500 tMoves beyond our own lowbed capacity

The gooseneck of a 4-axle lowbed can still carry a few small, light pieces. That often saves one truck on a multi-piece breakbulk lot. We tell you upfront which equipment is our own and which comes from long-term partners.

Project Shipping prime mover and lowbed loaded with tarpaulin-covered machinery at Ben Nghe port, heavy haulage to Song May industrial zone
One of two lowbeds on a machinery move, Ben Nghe port → Song May industrial zone, Dong Nai (September 2026).

Why owning the lowbed matters to an agent

  • Firm dates. We do not wait for a sub-contractor to confirm a truck.
  • Permits on our plates. A permit is issued for a named vehicle. Ours are ready for the most common widths.
  • One accountable crew. Our drivers, our lashing, our photos at every stage.
  • Net rates for network members. You keep your margin and your customer.

When does heavy haulage in Vietnam need an oversize permit?

Vietnamese rules look at the loaded vehicle, not the cargo alone. Under Circular 12/2025/TT-BXD, as amended by Circular 19/2026/TT-BXD, you need an oversize permit when the vehicle with its load exceeds any limit below.

LimitThreshold (vehicle + cargo)Classification
Widthover 2.5 mOversize (out-of-gauge)
Height from road to top pointover 4.2 m; over 4.35 m for container vehiclesOversize
Lengthover 20 mOversize
Gross combination weightover 48 tOverweight (super-heavy)

Gross weight means tractor, trailer, cargo, dunnage and lashing together. A 30 t transformer on a trailer can already pass 48 t. Axle loads matter too: a single axle is limited to 10 t, a tandem to 11–18 t and a tri-axle group to 21–24 t, depending on axle spacing.

A super-heavy permit covers one indivisible piece per vehicle. If the cargo can be split, the authority expects it to travel split.

Gross limits for a tractor and semi-trailer rise with the number of axles: 34 t for 4 axles, 38–42 t for 5 axles, and 40–48 t for 6 axles or more, depending on the distance from kingpin to the first trailer axle. Above those figures, the move needs an overweight permit even if the cargo is narrow.

Send L×W×H + weight, pick-up and site. Get a heavy haulage plan and net rate within 30 minutes.

Add a drawing with lifting points if you have it. We reply with the trailer type, permit class and an honest lead time.

How long does an oversize permit take in Vietnam?

The issuing authority is the provincial Department of Construction, or the Vietnam Road Administration when a route crosses several provinces. Once the file is complete, processing takes about two working days, whether filed in person or through the National Public Service Portal. The real lead time is the work before the file is complete.

Type of heavy haulage moveTypical lead timeWhat drives it
Simple OOG on a route we know3–5 working daysStandard file, existing survey
OOG that needs a field survey5–10 working daysSurvey report, photos, measured control points
Super-heavy, complex bridges10–20 working daysAxle load and bridge checks with the road authority
Reinforcement, several provinces, police, night moves15–30 working daysCoordination between provinces and traffic police

The permit names the vehicle plate, the route, the validity dates and the running conditions: lane, speed, bridge crossing method and escort. Our drivers run only inside those conditions. If the cargo arrives bigger than the drawing, we re-measure after loading and do not move until the permit matches.

A route survey report can be reused. On a surveyed route it stays valid for 6 months for a vehicle of equal or smaller size. On expressways and class I–III lowland roads it stays valid for 9 months when the overall width is 3.3 m or less. That is why our trucks can take most over-width flat racks without a new permit wait.

Escort vehicles and traffic police: who does what

Agents often ask for a “police escort”. In Vietnam three different things hide behind that phrase, and it helps to keep them apart.

TaskWho handles itWhen it applies
Oversize permitDepartment of Construction issues it; we applyEvery move above the limits
Notice to traffic policeThe issuing authority sends the permit to the traffic police of each province on the routeAutomatic with the permit
Escort vehicleOur pilot car and crew: warning, spacing, turns, bridge crossingsWhen the permit or the route requires it
Police coordinationWe send a written request to local traffic policeWrong-way sections, weak bridges, toll plazas, night runs across provinces, loads over 3.3 m wide or 4.5 m high in town

For heavy haulage over 48 t, with a slow convoy, we start police coordination early. It is part of the lead time in the table above, not an extra on the day.

Route survey: what we measure before the lowbed moves

A map route is not a survey. Our team drives the route and records every point that can stop the convoy.

Desk checkTwo or three route options, published bridge loads and restricted points.
HeightFlyovers, power lines, trees, signboards and gates, measured on site.
Width and turnsRoundabouts, junctions, toll lanes and the factory gate.
Time windowsCity truck curfews, port gate hours and the site’s receiving hours.
ReportPhotos and video for each control point, used for the permit file.
Convoy planTrailer choice, escort, stops and who calls whom on the night.

Most heavy haulage in Ho Chi Minh City runs at night. Daytime truck restrictions apply on many urban roads, and a slow convoy is safer when traffic is light. We confirm the site can receive at night before we book the move.

Recent heavy haulage moves on our lowbeds

Customer names are withheld. Routes and dates are as recorded in our job files.

Pressure vessel on a Project Shipping lowbed during heavy haulage from Bien Hoa to Moc Bai near the Cambodian border

Pressure vessels, Bien Hoa → Moc Bai (August 2026)

Cargo
Breakbulk vessels, no container
Equipment
3 trailers in one move
Route
Bien Hoa, Dong Nai → Moc Bai, Tay Ninh, near the Cambodian border
Result
Delivered on 31 August 2026
Six large cable reels unloaded from open top containers onto two Project Shipping lowbeds at night, Cat Lai port

6 cable reels, Cat Lai → Khanh Hoa (July 2026)

Cargo
Six large power cable reels from open top containers
Equipment
2 trailers from our fleet
Route
Cat Lai port, Ho Chi Minh City → Khanh Hoa, central Vietnam
Note
Reels moved from the containers onto our trucks at the port, at night

Machinery and construction equipment

Rollers, excavators and other tracked machines go on a 4-axle trailer to keep the overall height low. We check the ramp, chock the tracks and chain the unit to the deck, then send you photos before departure.

Need the ocean leg too? See our OOG cargo page for flat rack and open top bookings into Cat Lai, Cai Mep and Hai Phong.

Project Shipping prime mover with a road roller on a lowbed at the Cat Lai container yard
Road roller on our lowbed at Cat Lai, bound for Xuan Bac, Dong Nai (September 2026).

What drives the price of heavy haulage in Vietnam?

Two moves of the same distance can differ a lot in price. These are the items that decide it, so you can compare quotes on the same basis.

Cost itemWhy it varies
Trailer type and axles4-axle or 6-axle, or modular trailer for the heaviest pieces
Oversize permit and surveyKnown route with a valid survey, or a new field survey and bridge check
Escort and police coordinationRequired by the permit, the route or night running across provinces
Waiting timeCurfew windows, permit dates, port release and site readiness
Lifting at both endsPort crane or mobile crane at pick-up and at site
Lashing and materialsChains, timber, chocks and the lashing certificate

We quote these lines separately. If you or your customer already hold the oversize permit, we can quote trucking only, as long as the permit is issued for our plate and the waiting time is agreed upfront.

What to send for a heavy haulage quote

  • L × W × H and weight of each piece, plus the drawing with lifting points and centre of gravity.
  • Pick-up point: port, terminal or factory, and the site address.
  • Ready date and the required delivery date.
  • Site conditions: crane access, ground, gate width, receiving hours.

For the full door-to-site picture, including ocean, port and customs, read our project cargo in Vietnam guide.

FAQ: heavy haulage in Vietnam

What is the heaviest piece your own lowbed can carry?
Our 6-axle lowbed is rated up to 62 t payload on a 14.5 m deck, 3.2 m wide. Our two 4-axle units take up to 44 t. For heavier pieces we add hydraulic modular trailers or SPMT from long-term partners.
Do I need an oversize permit for a 40′ flat rack that is 3.2 m wide?
Yes. Any loaded vehicle over 2.5 m wide needs an oversize permit in Vietnam. Our own trucks already hold a permit for flat racks of about 3.3 m wide, so there is no permit wait for that width on our trucks.
How long does an oversize permit take?
About two working days once the file is complete. Plan 3–5 working days on a known route, 5–10 when a field survey is needed, 10–20 for super-heavy moves with bridge checks, and 15–30 when several provinces, police or reinforcement are involved.
Is a police escort always required?
No. The permit decides. Many moves need only our own escort vehicle. We request traffic police support for wrong-way sections, weak bridges, toll plazas, night runs across provinces and very wide or tall loads in town.
Can you run heavy haulage outside southern Vietnam?
Yes. We have run our trucks from Ho Chi Minh City to Khanh Hoa in central Vietnam and to Moc Bai near the Cambodian border. For northern moves from Hai Phong we plan the route and permit the same way.
Will you contact our end customer?
No. We work under your instructions. Photos, documents and updates go to you unless you ask us to deal with the consignee.

Related services

Project cargo

Door-to-site planning from vessel hook to foundation.

Project cargo →

Breakbulk & heavy lift

Units too big for any container, discharged hook-to-truck where possible.

Breakbulk →

Vietnam ports

Cat Lai, Cai Mep, Hiep Phuoc and Hai Phong for OOG cargo.

Ports guide →

Moving a heavy piece in Vietnam this quarter?

Tony Tuan, CEO: WhatsApp +84 909 411 668 · ceo@projectshipping.vn
Nura Tu, Overseas Department: WhatsApp +84 906 770 650 · overseas@projectshipping.vn
Calling from Vietnam: 0909 411 668

Last updated: October 2026 · Vietnamese version

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