Whenever any sidewalk in the City shall become defective, the Street Transportation Director shall notify the owner of the abutting property of such defective condition and shall notify the owner to immediately repair such sidewalk and unless immediate steps are taken by the owner to repair the sidewalk, the City shall proceed to repair the sidewalk and tax the cost of such repair to the abutting property owner and make such cost a lien upon the property abutting on the sidewalk so repaired. Any such owner shall be liable for and pay the cost and expenses incurred by the City for repairing such sidewalk and the property abutting on such sidewalk so repaired shall be subject to a lien for the cost and expenses incurred by the City in repairing such sidewalk. (Code 1962, § 35-68; Ord. No. G-3313, § 1)