Persons desiring to make any excavation in any public way or easement shall execute an application for making excavations. This application shall clearly set out the purpose of the excavation, location of the excavation, size of the opening, type of pavement (if any) to be removed, and the approximate length of time the excavation will remain open. Instructions by the director of public services as to backfilling, barricading, and protective lighting at night shall be strictly adhered to as required in the application.
('69 Code, § 17-2)