Whenever any sidewalks, curbs, or driveway aprons within the street area, and related work or installation are constructed, repaired, or altered, such construction shall be subject to inspection and approval by the director of public service and safety as to plans and installation, and the work shall be in conformity with the requirements prescribed by the director of public service and safety and in conformity with the established grade of such street areas.
('59 Code, § 903.03) Penalty, see § 92.99