339.13  MAXIMUM AXLE LOAD, WHEEL LOAD AND GROSS WEIGHTS FOR PNEUMATIC TIRED VEHICLES.
   No vehicle having a maximum axle load  greater than 20,000 pounds shall be operated or moved upon improved public highways, streets, bridges or culverts within the Municipality.  The maximum wheel load of any one wheel of any such vehicle shall not exceed 650 pounds per inch width of pneumatic tire, measured as prescribed by Oxford Code Section 339.12.
   (a)   The weight of vehicle and load imposed upon the road surface by vehicles with pneumatic tires shall not exceed the following:
      (1)   By any two successive axles, spaced more than four feet apart and weighed simultaneously, 24,000 pounds.
      (2)   By any two successive axles, spaced more than four feet apart and weighed simultaneously, 34,000 pounds, plus 1,000 pounds per foot or fraction thereof over four feet, not to exceed 40,000 pounds.
   (b)   The weight of vehicle and load imposed upon the road surface by vehicles with pneumatic tires, by any three successive load bearing axles designed to equalize the load between such axles and spaced so that each such axle of the three axle group is more than four feet from the next axle in the three axle group, and so that the spacing between the first axle and the third axle of the three axle group is no more than nine feet, shall be computed using either of the following methods:
      (1)   Such load bearing three axle group shall be weighed simultaneously as a unit and shall not exceed 48,000 pounds.  The total weight of vehicle and load shall not exceed 38,000 pounds, plus an additional 900 pounds for each foot of spacing between the front axle and the rearmost axle of the vehicle provided that the total weight of the vehicle and load imposed upon the road surface shall not exceed 80,000 pounds.
      (2)   Such load bearing three axle group shall be weighed simultaneously as a unit and shall not exceed 42,500 pounds.  The total weight of vehicle and load of a six axle vehicle combination, with at least 20 feet of spacing between the front axle and rearmost axles, shall not exceed 54,000 pounds, plus an additional 600 pounds for each foot of spacing between the front axle and the rearmost axle of the vehicle provided that the total weight of the vehicle and load imposed upon the road surface shall not exceed 80,000 pounds.
   The total weight of vehicle and load utilizing any combination of axles, other than as provided for three axle groups in subsection (b) hereof, shall not exceed 38,000 pounds, plus an additional 900 pounds for each foot of spacing between the front axle and rearmost axle of the vehicle provided that the total weight of a vehicle and load imposed upon the road surface by vehicles with pneumatic tires shall not exceed 80,000 pounds.
   (c)   As used in this chapter:
      (1)   “Axle” means one or more load carrying wheels mounted in a single transverse verticle plane.
      (2)   “Spacing between axles” means the distance between any two successive such planes.
      (3)   “Maximum axle load” means the gross weight of vehicle imposed by any axle upon the road surface.
      (4)   “Maximum wheel load” means the proportionate gross weight of vehicle and load imposed by any wheel upon the road surface.
      (5)   “Overload pounds” means the gross weight that exceeds the legal weights set forth in this chapter. 
(Ord. 2107.  Passed 7-17-90.)