GIS and Mapping
Layer Name: Landslide
The geohazard layer was interpreted from three factual maps, surficial geology, slope, and soil. The Idaho Geological Survey (IGS), Moscow, Idaho, provided these three maps. Knowledge of the engineering characteristics and experience with the geologic materials aided the interpretation of geohazards. Geologic materials with similar geotechnical engineering properties were assigned to the same Geotechnical Terrain Unit (GTU).
|Geologic Hazards Study Report||CWCo Final Report|
|Geotechnical Terrain Unit 1||GTU_1|
|Geotechnical Terrain Unit 2||GTU_2|
|Geotechnical Terrain Unit 3||GTU_3|
|Geotechnical Terrain Unit 4||GTU_4|
|Geotechnical Terrain Unit 5||GTU_5|
|Geotechnical Terrain Unit 6||GTU_6|
Digital geotechnical hazard map compiled by Terry Howard from IGS surficial geology and new field work. The Clearwater County FEMA Flood layer was digitized from the FEMA Flood maps.
GTU.shp contains these items:
|CLGTU||Clearwater GTU polygon Id|
|CLGTU_ID||GTU ploygon Id|
|LAYER||GTU reference layer|
The Landslide Hazard layers were created with a one time grant opportunity.