No public utility, contractor or any other person, except a contractor performing City work on a regularly awarded City contract, shall excavate within or bore or tunnel through, along or across the limits of any street, roadway, alley or public grounds in or owned by the City, for the purpose of.installing sewer, water or gas lines, telephone or power conduits or cables, or any other structure, except those structures carrying overhead electric or telephone circuits, without first having obtained a permit therefor from the City.
(Ord.77-0-7. Passed 2-22-77.)