It shall be unlawful for any person, firm, or corporation, municipality or district to interfere with, destroy or use in any manner whatsoever any levee, embankment, channel, dam, reservoir, rain or stream gages, telephone lines, piling, fence or other stream protection work constructed by or on behalf of any public agency without a written permit therefor from the City Council, which permits shall be revocable whenever, in the opinion of the City Council, the public interest or welfare require the revocation thereof. No permit to use any flood control protection work or rights-of-way owned or constructed by the Los Angeles County Flood Control District shall be effective unless written permit so to do has been obtained from the Board of Supervisors of the district.
(`83 Code, § 12.28.020)