Definitions — "A"
Seattle Mun. Code § 23.60A.902
in effect"Aquatic noxious weeds" means aquatic noxious weeds as defined in RCW 17.26.020. "Aquatic rotovator" means a rotary tiller that has underwater rototiller-like blades used to uproot aquatic plants. "Artificial reef" means a submerged human-made structure developed for the purpose of enhancing recreational diving or creating habitat for marine life. "Average grade level" means the calculation determined by averaging the elevations at the center of all exterior walls of the proposed building or structure. In the case of structures to be built over water, average grade level shall be the elevation of ordinary high water in freshwater and mean higher high water in marine waters. (Ord. 124750 , § 61, 2015; Ord. 124105 , § 3, 2013.)
Source: Seattle Municipal Code (Municode library)URL: https://library.municode.com/wa/seattle/codes/municipal_codeFetched: 7/25/2026