Simplify Your Oversize/Overweight Loads
Max Legal Weight for GVW under 80,000 lbs and Max Permitted Weight for GVW over 80,000 lbs
Axle Group | Maximum |
Single | 20,000 pounds |
Tandem (Two Axle) | 34,000 pounds |
Tridem (Three Axle) | 48,000 pounds |
Gross Vehicle Weight | 80,000 pounds |
Gross or axle overweight shall not be permitted on a combination unit of less than 5 axles; or on a single unit except off-road equipment such as a road grader, mobile crane, or other self-propelled unit. A vehicle shall not be issued an overweight permit that does not have a declared gross weight of at least 80,000 lbs. Maximum weights shall not be permitted unless all bridges and roads on the moving route have sufficient capacity to accommodate the load. The weight on a single axle in any combination shall not exceed the product of 700 pounds times the aggregate width in inches established by the manufacturer's stamped tire measurement of all the tires on the axle, or the following axle or axle group weights, whichever is less.
In accordance with 601 KAR 1:018 combinations units of five (5), six (6) and seven (7) axle configurations shall be limited to the following:
Source of information: https://drive.ky.gov/motor-carriers/Pages/OWOD-Legal-Dimensions.aspx