No person shall make an excavation or opening in or under a street right of way without first obtaining a written permit therefor from the City Manager. No permit shall be granted until the applicant posts a cash deposit and files a liability insurance policy as provided by Council.
(a) Street Excavations. No permit shall be granted for making an excavation or opening within the limits of a street which will result in permanent or prolonged interference with public use of the streets.
(b) Manholes. No permit shall be issued for manholes in any street, except for public utility uses and openings for fuel supply.