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Dump Trucks
The amount of weight that a truck can have per axle is decided by the department of transportation in each U.S. state. When you load a dump truck with gravel, the weight can easily exceed the per-axle limit, so the extra wheels/axles are lowered to make the truck legal. They are raised at other times to improve gas mileage and eliminate wear on the tires.
When shopping for a dump truck, remember that you can often find attractive lease or rental options that will save you over the cost of purchasing a new or used dump truck. Dump trucks are heavy-duty trucks having a bed that tilts backward to dump loose material. Heavy duty dump trucks will have multiple axles to support the extra load. There are transportation laws affecting axle weight limits for trucks.
A dump truck is usually an open-topped truck having a body that can be tilted to discharge its contents, as sand or gravel, through an open tailgate. Dump trucks are used typically for construction projects or for any project that requires hauling material from one location to another. The main choice when considering a dump truck is capacity. The larger the dump truck, the more expensive. Larger dump trucks allow fewer round trips to complete the project thus saving time and money.