From and after the passage of the ordinance codified in this chapter, it is unlawful for any person, firm or corporation to break up, dig up, cut, excavate or fill in any street, or construct any sidewalks, driveways, gutters or plank roadway, or to do any work in or upon any of the public streets within the city limits without first obtaining a permit therefor as provided in this chapter, except that the provisions of this chapter shall not apply to street or sidewalk repairs within the limits authorized by law or made in pursuance of a notice to repair from the city recorder. Any improvement not fully provided for in this chapter shall be done in accordance with plans and specifications prepared by the city engineer. (Ord. 2763 §1, 1958).