The gross vehicle weight rating (GVWR) is the maximum weight that a vehicle is legally allowed to weigh, including the vehicle itself and any cargo or passengers. The GVWR for a 3 axle tractor and 2 trailer is typically between 80,000 and 100,000 pounds.
Bridge Formula
In addition to the GVWR, there are also bridge formula regulations that limit the weight that can be placed on each axle or set of axles. These regulations are designed to protect bridges from damage. The bridge formula for a 3 axle tractor and 2 trailer is:
* Front axle: Up to 12,000 pounds
* Drive axles: Up to 34,000 pounds each
* Trailer axles: Up to 20,000 pounds each
Cargo Weight
The cargo weight that you can legally load on a 3 axle tractor and 2 trailer depends on the GVWR and bridge formula regulations. To calculate the maximum cargo weight, you will need to subtract the weight of the vehicle itself from the GVWR. Then, you will need to distribute the weight evenly across the axles according to the bridge formula regulations.
Permits
In some cases, you may need to obtain a permit to operate a 3 axle tractor and 2 trailer. This is typically required if the vehicle exceeds the legal weight limits or if it is traveling on certain roads.
Penalties
Violations of the GVWR and bridge formula regulations can result in fines, penalties, and other legal consequences.
