South Dakota § 32-22-21 - Maximum weight on tires, axles--Penalty.

§ 32-22-21. Maximum weight on tires, axles--Penalty.

No vehicle equipped with pneumatic tires may be operated or moved upon any highway in this state, if the weight of the vehicle and the load thereon resting upon the surface of the highway exceeds:

(1)    Six hundred fifty pounds on any inch of the tire width on any type of axle permanently attached to a mobile crane, moving upon any highway in this state, with a boom carried over the vehicle and operating with a permit issued under § 32-22-42;

(2)    Six hundred pounds on any inch of the tire width on:

(a)    An axle equipped with dual tires;

(b)    A steering axle;

(c)    An axle of an oversize or overweight vehicle that cannot be readily reduced in size or weight and is operating with a permit issued under § 32-22-42;

(d)    An axle of a trailer being towed by a vehicle with a gross vehicle weight rating of eleven thousand pounds or less; or

(e)    An axle equipped with tires having a minimum width of four hundred forty-five millimeters or seventeen and one-half inches if operated on a highway identified in § 32-22-21.2; or

(3)    Five hundred pounds on any inch of the tire width on any other type of axle.

In no instance may the weight on any axle or combination of axles exceed the maximum weight limits specified in § 32-22-16. A violation of this section is a Class 2 misdemeanor.

For the purposes of this section, "mobile crane" means a lifting machine mounted on a self-propelled carrier, featuring a telescoping or lattice boom, designed to easily move between work sites for lifting and moving heavy materials.

Source: SDC 1939, § 44.0336 (6) (e) as added by SL 1943, ch 158, § 2; SL 1947, ch 192; SL 1953, ch 234; SL 1957, ch 223, § 2; SL 1959, ch 260, § 2; SL 1984, ch 230, § 19; SL 1996, ch 202, §§ 2, 3; SL 2013, ch 148, § 1; SL 2026, ch 137, § 1.