This chapter shall be cited as “Regulations for the Abatement of Dangerous Obstructions in Streambeds.” It is the purpose of this chapter to provide a speedy, just, equitable and practicable method, to be cumulative to any other remedy available at law or equity, whereby, during the rainy season each year, the city may summarily remove, or require the removal of, structures, trees and other things which have fallen, or which are in imminent danger of falling, into lakes, creeks and streambeds within the city. Such summary removal is necessary because fallen trees, structures, and other things tend to clog drainage channels, bridges and culverts and to restrict and interfere with the free flow of water during periods of heavy runoff, thereby creating an increased danger of flooding. (Prior code § 5221.1)