Standards for research, aquatic, scientific, historic, cultural and educational
Seattle Mun. Code § 23.60A.210
in effectAquatic, scientific, historic, cultural and educational research uses are allowed in all environments waterward and landward of the OHW and in wetlands if: A. No structures are erected. B. No interference with navigation occurs. C. No vegetation is permanently removed. D. Temporary removal of vegetation is allowed if: 1. It is the amount reasonably necessary to accommodate the research; 2. No native trees and no nonnative trees with a 6 inches or greater DBH are removed; and 3. Vegetation that is removed is replaced in compliance with the standards in Section 23.60A.190 , including maintaining or creating naturally functioning conditions that prevent erosion, protect water quality, and provide diverse habitat. E. No impervious surface is created. (Ord. 124105 , § 3, 2013.)
Source: Seattle Municipal Code (Municode library)URL: https://library.municode.com/wa/seattle/codes/municipal_codeFetched: 7/25/2026