(A) No person shall operate on a highway any vehicle, object or contrivance, other than a motor truck or semitrailer truck, which weighs more than 5 tons, including the weight of the vehicle, object or contrivance and load, except as provided by division (B). This shall not apply to vehicles run upon tracks or fire apparatus belonging to the fire department or used by the department in the discharge of its functions.
(B) The mayor or city engineer upon an application in writing by the owner or person having charge of, may grant permission for the movement of vehicles, objects or structures limited by division (A), over the highways within the city. The permission shall be in writing and the mayor or city engineer may grant it subject to the conditions and restrictions as in his judgment are necessary for the preservation and protection of the highways.
(KRS 189.210) Penalty, see § 70.99 (AA)