Sidewalks shall not be less than four inches in thickness, and bituminous expansion paper three-eighths inch thick shall be placed in the joints and where other walks, drives, and curbs join. All concrete used in sidewalk construction shall, 28 days after placement, be capable of resisting a pressure of 2,500 pounds per square inch without failure. The concrete shall be a #5 bag mix with Grade A aggregate or equal. The subbase shall be of four-inch tamped sand. Residential walks shall be five feet wide with a slope of one-fourth inch per foot toward the street unless otherwise authorized by the City Manager.
(1993 Code, § 95.28)