It is unlawful for any person to excavate or cause to be excavated any hole, trench or ditch in any street, alley or sidewalk within the City limits without first having notified either the Department of Public Works of the City between the hours of 8:00 a.m. and 5:00 p.m., or the Police Department before 8:00 a.m. and after 5:00 p.m., of their intention to do so, stating the time and place and approximate duration of such excavation. Where the place of excavation is not specifically fixed by a franchise or permission, the place shall be designated by the Director of Public Works or the superintendent of streets and the work done under the direction of such individual. (Ord. 1205 § 2, 1969; prior code § 27.601).