Section 19-104-22 - Overweight permits(a) The district engineer may issue a permit for overloads, provided the following load conditions are not exceeded: (1) The actual axle load imposed upon the pavement shall not exceed 48,000 pounds in the case of a single axle or 84,000 pounds for a tandem axle. On structures the axle load shall not exceed the allowable loads taken from the following table: Maximum Allowable Loads--Pounds
| Width of Axle--Feet (Tread Width) | Single Axle | Tandem Axle |
| 6 | 36,000 | 48,000 |
| 7 | 39,000 | 52,000 |
| 8 | 42,000 | 56,000 |
| 9 | 45,000 | 60,000 |
| 10 | 48,000 | 64,000 |
and the wheel load per tire shall not exceed 12,000 pounds.
(A) "Tread width" is the distance between the centerlines of the two tires on the same axle. For dual tires, it is the distance between the centers of the two sets of tires. For multiple tires on the same axle, it is the distance between the centers of the outer two tires on each end.(B) A single axle is a single continuous transverse shaft or split transverse shafts connecting the wheels of a vehicle or a group of two or more transverse shafts connecting the wheels of a vehicle which may be on separate vertical transverse planes which are less than 42 inches apart.(C) A tandem axle is a combination of two consecutive single axles as defined above which are less than 6 feet but greater than 42 inches apart.(2) The allowable maximum gross weight for overweight vehicles on bridges may be approximated by multiplying the legal gross loads permissible under the Hawaii Revised Statutes, chapter 291, by the following constants: (b) Applications for overload in excess of those specified above shall be referred to the construction and maintenance branch for further review, with the district engineer's comments and recommendations. The design branch and the materials testing and research branch shall assist in the review when requested.(c) The overloaded vehicle shall not exceed the speed indicated on the permit Generally, overloaded vehicles shall be restricted to 5 miles per hour on structures.(d) Stopping on any bridge is prohibited. Also, no other vehicle, except passenger cars (unless specifically prohibited), shall be permitted on structures at the same time as the overweight vehicle.(e) An overweight vehicle shall be allowed to cross an existing state highway at locations approved by the district engineer. However, if such move is expected to be made on a repetitive and continuous basis, the owner of the vehicle shall construct, or cause to construct, at his own expense, a structurally suitable crossing at locations approved by the district engineer. Except for vehicle or combination of vehicles used in agricultural operations as described in section 19-104-27, a permit is required for movement of overweight vehicle across state highways.[Eff. MAY 30 1981] (Auth: HRS Sec. 291-36) (Imp: HRS Sec. 291-36)