No commercial motor vehicle, truck tractor, trailer, semi-trailer or combination of such vehicles shall be operated or caused or permitted to be operated upon any public street within the city having a weight in excess of any one or more of the following limitations:
(1) 
In no event shall the total gross weight, with load, of any vehicle or combination of vehicles exceed 72,000 pounds.
(2) 
No axle shall carry a load in excess of 18,000 pounds. An axle load shall be defined as the total load transmitted to the road by all wheels whose centers may be included between two parallel transverse vertical planes 40 inches apart, extending across the full width of the vehicle.
(3) 
The total gross weight concentrated on the highway surface from any tandem axle group shall not exceed 32,000 pounds for each such tandem axle group. Tandem-axle group is defined to be two or more axles spaced 40 inches or more apart from center to center having at least one common point of weight suspension.
(4) 
Vehicles used exclusively to transport ready-mix concrete may be operated upon the public streets of the city with a tandem axle load not to exceed 36,000 pounds and a gross load not to exceed 48,000 pounds.
(1976 Code, sec. 31-120; 1998 Code, sec. 126-278; 2013 Code, sec. 56-254)
(a) 
No commercial motor vehicle shall exceed a total outside width, including any load thereon, of 96 inches, except that the width of a farm tractor shall not exceed nine feet and that the limitations as to size of a vehicle stated in this section shall not apply to implements of husbandry, machinery used solely for the purpose of drilling water wells, or highway or street building or maintenance machinery owned or operated by or on behalf of the state or any of its political subdivisions or the city.
(b) 
No commercial motor vehicle, unladen or with load, shall exceed a height of 13 feet six inches, including the load.
(c) 
No commercial motor vehicle, truck tractor, trailer or semi-trailer, except pole trailers, shall exceed a length of 35 feet except when such vehicle is operated in combination and coupled to another such vehicle, and when operated in combination no such combination of vehicles coupled together shall exceed a total length of 60 feet; provided, however, that the provisions of this subsection shall not apply to any disabled vehicle being towed by another vehicle to an intake place for repairs; and provided further that the limitations of this section shall not apply to any mobile home or to any combination of a mobile home and a motor vehicle, but no mobile home and motor vehicle combination shall exceed a total length of 55 feet.
(1976 Code, sec. 31-121; 1998 Code, sec. 126-279; 2013 Code, sec. 56-255)
No vehicle or combination of vehicles, except pole trailers, shall carry any load extending more than three feet beyond the front thereof, or more than four feet beyond the rear thereof.
(1976 Code, sec. 31-122; 1998 Code, sec. 126-280; 2013 Code, sec. 56-256)
It shall be unlawful for any person to operate or cause to be operated any commercial motor vehicle on a public street in such manner as to permit any portion of its cargo, either liquid or solid, to fall out of, spill from, or blow out of such vehicle.
(1976 Code, sec. 31-123; 1998 Code, sec. 126-281; 2013 Code, sec. 56-257)