A. When Required: A geotechnical analysis shall be required for proposed building sites, roads, driveways or other development in locations where:
1. Soils classified as colluviums are present on the parcel proposed for development in locations proposed for construction activities;
2. The locations proposed for construction activities include slopes of fifteen percent (15%) or more;
3. The locations proposed for construction activities include high water table soils;
4. There are scarps; slumps, seeps; boulder piles, fresh deposit of rock, soil, or debris; ponds in irregular depressions above the valley floor; cracks; bare soils; indications of earth movement based on its impact on vegetation; or other geologic features that may be unstable, or that are indicators of unstable conditions, as determined by the Director.
B. Geotechnical Analysis Requirements:
1. 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.
2. The geotechnical analysis shall explain the geologic and hydrologic features of the area, shall evaluate the suitability of the site for intended building, structures, and 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. 546, 10-17-2019)