All excavations, refilling of excavations and rolling the same pursuant to the provisions of this chapter shall be made under the supervision and direction of the Street Superintendent. It shall be the duty of the Street Superintendent to supervise and direct all such excavations, refilling and rolling of the same, and to require that all such excavations, refilling and rolling the same comply with the requirements of this code and any ordinances of the city.
(`83 Code, § 12.08.090)