Articulated dump truck: capacity, uses and how it gets to the job
Steve Woods · Truck Dispatcher, TruckSprint
Steve Woods is a truck dispatcher with 9 years of experience in trucking. He reviews every guide we publish. How we research and update guides.
Updated October 2026
Quick answer
An articulated dump truck (ADT) is an off-road hauler with a hinge between the cab and the dump body, built for mud, slopes and haul roads. Capacity runs from about 28 to 60 short tons: Volvo's current US lineup goes from the A25 (28 sh tn, 20 yd³ heaped) to the A60 (60.6 sh tn).
Source: Volvo CE US articulated dump trucks lineup, read Oct 27, 2026 · checked 2026-10
An articulated dump truck is the machine that moves dirt where a road truck can't go. I'm Steve Woods, a truck dispatcher at TruckSprint with 9 years in trucking. Road dump truck owners meet ADTs all the time: they work the same jobs, and they ride to those jobs on someone's lowboy. Here's what they carry, where they fit and what moving one takes.
How an articulated dump truck works
Two units, one hinge. The front tractor holds the engine and cab; the rear unit carries the body on a bogie of axles. Hydraulic cylinders bend the truck at the hinge to steer, so the rear wheels follow the front ones instead of cutting the corner. With drive to every axle and big flotation tires, an ADT keeps moving on soft ground, side slopes and rutted haul roads.
The trade-off is speed and road access. Volvo lists a top speed of 33 mph for the A25, and none of these trucks is registered for normal highway use.
Articulated dump truck capacity
Makers rate ADTs by payload and heaped body volume. Here's one maker's full current US lineup, from its own pages:
| Volvo CE model | Rated payload | Body, SAE 2:1 heap | Engine |
|---|---|---|---|
| A25 | 28 sh tn | 20 yd³ | 315 hp |
| A30 | 32 sh tn | 23.3 yd³ | 355 hp |
| A35 | 38 sh tn | 28.4 yd³ | 451 hp |
| A40 | 43 sh tn | 31.4 yd³ | 469 hp |
| A45 | 46.3 sh tn | 33.4 yd³ | 490 hp |
| A50 | 49.6 sh tn | 36.4 yd³ | 516 hp |
| A60 | 60.6 sh tn | 43.9 yd³ | 630 hp |
Source: Volvo CE United States, articulated dump trucks lineup and model spec pages · checked 2026-10
Caterpillar, Komatsu, John Deere, Bell and Rokbak build ADTs in similar classes; check each maker's current spec sheet before comparing, since ratings change between model generations.
Compare that with the road. An EXAMPLE tri-axle on the Interstate carries about 13 legal tons (tri vs quad vs quint). Even the A25 carries roughly twice that, because off-road it's bound by its own rating, not road weight laws.
Small articulated dump trucks
Volvo's smallest US ADT is still a 28-ton machine. Smaller ADTs exist from other makers, and public rate books show how wide the range runs: Caltrans's equipment schedule lists off-highway trucks rated from 10 to 67 tons. Below that, the job belongs to mini dumpers and tracked carriers; see our mini dump truck guide.
ADT vs rigid hauler vs road dump truck
| Articulated hauler | Rigid off-highway hauler | Road dump truck | |
|---|---|---|---|
| Ground | Soft, steep, rough | Built, maintained haul roads | Paved and gravel roads |
| Load limit | Maker's rating | Maker's rating | Road weight law (Bridge Formula, state tables) |
| Typical work | Earthworks, site prep, quarry floors | Mines, big quarries | Aggregate, asphalt, spoil off site |
| On public roads | No, moves by lowboy | No | Yes, registered and inspected |
| Driver rules | OSHA earthmoving rules | OSHA or MSHA | CDL, drug testing, hours of service |
A rigid hauler carries more for its price on a good haul road, but bogs where an ADT keeps going. A road dump truck is the only one of the three that can leave the site loaded, which is why big jobs use both: ADTs move material inside the fence, road trucks haul it out.
Who can run one: OSHA, not FMCSA
On a construction site, an ADT is earthmoving equipment. OSHA's rule at 29 CFR 1926.602(a)(1) names "off-highway trucks" among the machines it covers. The rule requires seat belts on covered equipment, and it bars an operator from backing equipment with an obstructed rear view unless a reverse alarm is working or a spotter signals it's safe.
Source: 29 CFR 1926.602, Material handling equipment (eCFR) · checked 2026-10
FMCSA's CDL rules apply to commercial motor vehicles on public roads, so a CDL isn't what qualifies someone to run an ADT inside a site. The employer's training is. Quarries and mines fall under MSHA instead of OSHA.
Articulated dump truck hauling: moving the machine
Between jobs, an ADT travels on a lowboy, and it's heavy even empty:
- A25 net weight (Volvo)
- 49,494 lb
- EXAMPLE tractor and lowboy, empty
- 40,000 lb
- Gross
- 89,494 lb
- Federal Interstate gross limit
- 80,000 lb
- Over by
- 9,494 lb: overweight permit
Tractor and lowboy weight is an EXAMPLE; weigh your own rig. Larger ADTs weigh more: Volvo lists the A40 at 69,225 lb and the A60 at 96,562 lb.
A machine you can't take apart is a nondivisible load, the kind states issue overweight and oversize permits for. Width and height often need a permit too, so measure the machine as loaded. The permit steps, flags, signs and escorts are in oversize load permits.
For a road dump truck owner, ADT jobs mean steady haul-off work: the ADTs feed a loader or a stockpile, and road trucks carry it away by the load, ton or hour. Price that work on your own legal tons, keep every ticket, and get the job's billing contact on day one.
TruckSprint no longer dispatches dump trucks or heavy haul. If you also run a 26 ft box truck, our desk can keep that one loaded.
Sources
- Volvo CE United States, articulated dump trucks lineup and A25, A40, A60 spec pages, read October 27, 2026
- 29 CFR 1926.602 (eCFR)
- Caltrans Labor Surcharge and Equipment Rental Rates, effective September 1, 2026
- 23 CFR 658.17 and 658.5 (federal gross limit, nondivisible loads)