The degree of property and habitat protection required by this chapter is considered reasonable for regulatory purposes and is based on scientific and engineering considerations. Larger floods and movement of channels outside of mapped channel migration areas may occur on rare occasions. Flood heights may be increased by unnatural or natural causes. This chapter does not imply that land outside the regulated areas or development permitted within such areas will be free from flood or erosion damage. This chapter shall not create liability on the part of the city, any officer or employee thereof, for any damage to property or habitat that results from reliance on this chapter or any administrative decision lawfully made hereunder. (Ord. 6761 § 1 (Exh. A), 2020.)