All sidewalks shall be upon such grade as the Director of Public Works and Utilities may direct. Where all the lots abutting the sidewalk in the block involved are zoned “A” residential, the same shall be not less than four feet in width, except in those areas where by reason of density of pedestrian traffic, the Director of Public Works and Utilities may require the installation of a five-foot sidewalk; provided, that whenever an existing sidewalk of more than four feet in width is reconstructed, repaired or replaced along a length of less than the full frontage of the abutting lot or parcel of land, the reconstruction, repair or replacement may be of the same width as the existing sidewalk.
(Ord. 505, passed 10-5-1942; Ord. 1733, passed 7-29-1963)