A. A geotechnical analysis shall be required for proposed building sites, roads, driveways or other development, where any of the following conditions apply:
1. Where the natural slope equals or exceeds thirty percent (30%);
2. Where soils are highly erodible, or where there are scarps, slumps, seeps or other geologic features exist that may be unstable, as determined by the Planning Director, Hearing Examiner, Zoning Commission or Board;
3. Where there is historic knowledge of sloughing, landslides, slumps or other hazardous geological features.
B. The geotechnical analysis shall be stamped and signed by an Idaho licensed civil or geological engineer having sufficient education and experience to prove competency in the field of geotechnical engineering. The geotechnical analysis shall be submitted prior to construction and shall explain the geologic and hydrologic features of the area, shall evaluate the suitability of the site for intended uses, shall identify potential problems relating to the geology and hydrology, shall summarize the data upon which conclusions are based, and shall propose mitigation measures. (Ord. 501, 11-18-2008; amd. Ord. 590, 6-12-2019; Ord. 661, 3-18-2022)