It is unlawful for any person to make an excavation within any street or alley in the city for the purpose of installing water, sewer, steam or gas pipes or electric or telephone conduits or for any other purpose, without first obtaining a permit for the excavation from the Utilities Commission or the City Council. A permit shall not be required for any excavation which is made under a contract awarded by the city or made by workers hired by the city.
(Prior Code, § 600.01) Penalty, see § 156.99