For the free, convenient and safe navigation within the harbor and in order to provide against the subsidence, washing, falling or depositing therein of earth or any other material from the abutting land by reason of any work or structure erected or maintained thereon, or material deposited or operations conducted therein, retaining works and structures and such repairs of existing works or structures as are suitable and necessary to preserve the channel and to prevent such depositing of earth or other material shall be constructed in the manner and at the times provided in Sections 573.04 and 573.05.
(Ord. No. 1606-11. Passed 3-19-12, eff. 3-22-12)