A. Every sidewalk shall be maintained in a safe condition at all times by the owner of the property abutting thereon.
B. There shall be a uniform level and slope to each sidewalk and no uneven surfaces, variations in grade or other condition that might be instrumental in causing injury to any person, shall be permitted to exist.
C. Where any existing sidewalk does not conform with the grade prescribed by the city engineer, the owner of the abutting property shall cause the same to be relaid to the grade, at his own expense. (1960 Compilation § 14-113)