Dump trucks and gravel: when you cross into for-hire and DOT territory

The honest answer is that the truck doesn’t know the difference. A Mack tandem hauling road base from the pit to your own driveway job is a dirt contractor’s truck. The same Mack hauling pit-run for a GC in Weld County at a per-ton rate is a for-hire motor carrier, and the underwriter, the state, and past a point the federal government all treat it that way. Most dirt outfits cross that line without noticing, usually the first time a friend with a big pour asks if you can bring a few loads. The dump truck and aggregate hauling page has the full stack. Here’s the line itself, what changes when you cross it, and the three questions that decide the policy: whose load, how far, and what’s on the filing.

Private carriage vs for-hire

Two things to keep separate.

Private carriage is hauling your own goods in support of your own business. The road base is yours, the job is yours, the trip is part of the excavation contract. Your commercial auto policy rates the truck as a contractor’s vehicle, and the dump truck is priced alongside the pickups and the lowboy.

For-hire is hauling someone else’s goods for compensation. The GC’s pit-run, the landscaper’s mulch, the county’s chip seal rock. You’re paid for the trip, not the dirt work. That makes the truck a for-hire motor carrier, which is a different class of business with its own rates, its own forms, and depending on the truck and the route, a filing with the state or the federal government.

The line is decided by two questions: who owns the load, and what are you being paid for. Hauling your own material to your own job is private. Hauling it for a fee, or hauling material that was never yours, is for-hire. A truck that does both is rated for-hire, because the carrier prices the worse of the two.

Here’s what we tell every contractor who asks. If you’ve ever invoiced a line item that reads “hauling” with a per-ton or per-hour rate and no dirt work attached, you’ve done for-hire work. Whether the policy knew about it is the question.

What changes when you cross

The class. A for-hire dump truck is a trucking risk. The underwriter looks at driver records, years of experience, the truck’s age and GVW, the radius, and the commodity. Gravel and aggregate are on the friendlier end of the commodity list. A truck that also hauls asphalt or demolition debris is a different conversation.

The filing. For-hire operation past a point brings a filing requirement. Intrastate for-hire work in Colorado generally involves the Public Utilities Commission. Interstate work, and trucks above the federal weight thresholds, generally involve the Federal Motor Carrier Safety Administration, a USDOT number, and the rest. The thresholds and the paperwork change, so we don’t quote them here. Check with the PUC and FMCSA before you bid for-hire work, and then tell us what they said, because the policy has to match the filing.

The MCS-90. When a federal filing is required, the carrier attaches an MCS-90 endorsement to the auto policy. Contractors read “endorsement” and assume it’s more coverage for them. It isn’t. The MCS-90 is a promise to the public: if a judgment comes in against you for a covered accident, the carrier pays it even if the policy would otherwise have a defense, and then the carrier collects from you. It’s a financial-responsibility instrument, not protection. Its job is to make sure the family in the car gets paid. Your job is to carry a limit high enough that the carrier isn’t paying on your behalf and then sending you the bill.

The limit. Colorado sets a floor for anyone who drives.

The property damage number is $15,000 per accident. A loaded Mack on Crow Hill in the first freeze-thaw of November uses that on the first car. Nearly every pit agreement, GC subcontract, and hauling contract we see asks for a $1,000,000 combined single limit, and for-hire filings carry their own minimums that sit above the state number. The commercial auto article walks through what the state minimum actually buys against a tandem full of road base. The short version: it keeps the plate valid and nothing else.

Cargo: the load in the bed

Auto liability pays for what the truck does to other people. Physical damage pays for the truck. Neither one pays for the load.

On your own material, that’s a shrug. Fourteen tons of road base in a ditch outside Greeley after the truck slides in a 50 mph crosswind is a lost afternoon and a call to the pit. On somebody else’s material, it’s a claim. The GC paid for that pit-run and wants it delivered or wants it paid for. If the load was something with real value per ton, the number gets serious.

Motor truck cargo coverage is what answers it. It’s typically written per truck with a limit sized to the most valuable load you’ll carry, and it commonly has its own exclusions (unattended vehicles, certain commodities, theft without forced entry). If you haul for hire, ask whether the policy has it. If you don’t, you can probably skip it. Where it gets interesting is the outfit that hauls its own material most of the year and then does three weeks of for-hire chip seal rock for the county in August. That’s the one that needs to call before August.

The other cargo problem is the one that leaves the truck without a rollover. A tailgate that didn’t latch, three-quarter rock along I-70, a dozen windshield claims over the following week. That’s auto liability, not cargo, and it’s why the liability limit matters more than any other number on the policy.

Radius, and the honest answer on the application

Radius of operation is one of the biggest rating factors on a dump truck and one of the most common places an application is wrong.

The underwriter asks how far the trucks run. Local, intermediate, long haul; the bands change by carrier. A truck that runs pit to job inside a short radius around Fairplay is priced one way. A truck that runs Front Range gravel to the Western Slope is priced another. A truck that crosses into Wyoming or Nebraska is a different filing entirely.

Answer it accurately. Not because the carrier is looking for a reason to deny the claim later, though a claim on I-80 under a local-radius policy is a claim with a coverage question attached. Because the premium is built on the answer, and a radius that’s too small on paper means a rate that’s too small on paper, and that’s the kind of thing that gets found at audit or at the first serious loss.

The Bell truck is not a dump truck

One more line worth drawing. The Bell articulated haul truck that moves dirt across the site has no plate and never sees the highway. It’s not on the auto policy at all. It’s contractor’s equipment, on the inland marine schedule at the value you gave it, and the equipment schedule article covers why that value is probably wrong. If it slides off a soft pit road, that’s an equipment claim. If it’s stolen off the site, same policy. The Mack with plates is auto. Knowing which policy each machine is on before the claim is half the job.

And the subhauler you bring on for a big pour is his own policy, if he has one. The subcontractor article covers what happens when he doesn’t, and why hired and non-owned auto on your policy is the floor under you either way.

What we don’t control

The filing thresholds, which are set by the PUC and FMCSA and which we don’t quote because they change. The rate a carrier puts on a for-hire dump truck with a driver who has two at-fault losses. Whether a GC’s exhibit wants the MCS-90 on the certificate or just the CSL. What we control is that the class on the policy matches the loads on the invoices, that the limit matches the contract, and that the cargo and the filing exist before the first for-hire ton leaves the pit, so the certificate doesn’t bounce the morning the truck is supposed to be at the site.

Where to go from here

The dump truck and aggregate hauling page has the full coverage stack, the exposures on the grade, and the FAQs we hear most from haulers. If your dump truck is on a contractor’s policy and you’ve ever invoiced a hauling line, send us the dec page and a couple of those invoices. The umbrella page covers what sits above the CSL when the contract asks for more, and the excavation insurance hub covers where the trucks fit with the rest of the stack.

Serving businesses located in Colorado. Coverage is determined by the policy language and the carrier.