No person, firm, or corporation shall transport over the improved public streets, alleys, intercounty highways, state highways, bridges, or culverts, in any vehicle propelled by muscular, motor, or other power, any burden, including weight of vehicle and load, greater than the following:
The total width of tires on all wheels shall be, in case of solid tires of rubber or other similar substance, the actual width in inches of all such tires between the flanges at the base of the tires, but in no event shall that portion of the tire coming in contact with the road surface be less than two thirds the width so measured between the flanges.
In the case of pneumatic tires, of rubber or other similar substance, the total width of tires on all wheels shall be the actual width of all such tires, measured at the widest portion thereof when inflated and not bearing a load.
In no event shall the load, including the proportionate weight of vehicle that can be concentrated on any wheel, exceed six hundred fifty pounds to each inch in width of the tread as defined in this section for solid tires, or each inch in the actual diameter of pneumatic tires measured when inflated and not bearing a load.
R.C. §5577.03