All work by the Director or a property owner must be done as follows: where no streetscape plan is in effect, with materials approved by the Director; where a streetscape plan is in effect, strictly in accordance with the streetscape plan; and in all cases:under the supervision and in accordance with the specifications of the Director of Transportation; and in a sufficient and substantial manner, consistent with modern techniques for improving, paving, repaving, or repairing footways. City Code, 1927, art. 45, §68(5th - 8th sens.) 1950, art. 35, §28(5th - 8th sens.) 1966, art. 26, §23(5th - 8th sens.) 1976/83, art. 26, §26(5th - 8th sens.) Ord. 12-102 Ord. 21-573 Ord. 22-711 Ord. 48-319 Ord. 76-139 Ord. 00-010 Ord. 15-435