The City Engineer may, by written permit, authorize a load or loads in excess of those allowed in the Vehicle Code if, in his judgment, the streets upon which such vehicle is to be operated can safely withstand the additional weight and if the applicant will guarantee to the City that all costs of repair to the streets or to the public property of the City damaged by the movement of such load or loads will be paid in full. Such permit will be granted upon such conditions and upon the deposit of such bond as the City Engineer may require. (Ord. 973 § 1, 1966; prior code § 19.14.1(B)).