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Landslide Project Project Background Clearwater County Project Impact identified landslide hazards as a major threat to lives and property in Clearwater County and established “assessing landslide areas and producing landslide hazard maps of critical areas of the County” as its primary mitigation action.
As a committee we realized our County and Cities need growth and development. But what are the landslide risks if we have more growth and development? There was no information available that identified landslide prone areas and their inherent risks in Clearwater County. We needed a mapping project.
Project Impact set aside funds for the landslide hazard mapping project. The quadrangles where joined to create a seemless map. To view the GTU (Geotechnical Terrain Units) maps by area or to download the GTU descriptions in word and pdf formats click the links below.
GTU Descriptions (word) GTU Descriptions (pdf) Through a competitive process, the The mapping project was completed on August 22, 2003. Landslide Committee
Additional information about landslide hazards can be found on the U.S. Geological Survey web site at: http://landslides.usgs.gov/html_files/nlicsun.html Photos: Top-Jenny Beegle in front her family's home after it was destroyed by a landslide in February 1996 (courtesy of Francine Finke); Center-Landslide into Orofino Creek during the Landslide/Flood period of February 1996 (courtesy of Clearwater County; Bottom-Slide behind the Fotheringham home in Greer January 1997 (courtesy Clearwater Tribune). | ||||||||||||||||||
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Clearwater County, city officials, local businesses, landowners, citizens and representatives from several state and federal agencies have been evaluating landslide mitigation needs in Clearwater County, Idaho since September 2001. This effort is sponsored by the Federal Emergency Management Agency through a program called Project Impact. Project Impact is a hazard mitigation planning and project implementation program that emphasizes harnessing local effort to mitigate the effects of natural disasters.
The purpose of the project was to produce map(s) of slope instability hazards at a scale 1:24,000 within the following U.S.G.S. quadrangles. (Click the quadrangle name to display the Surficial Geologic map of each of the chosen quadrangles in pdf format)
contract was awarded to Howard Consulting of Moscow, Idaho. Idaho Geological Survey mapped the surficial geology within the quadrangles and Terry Howard of Howard Consulting produced the hazard map. The surficial geology maps are available in PDF format on the Idaho Geological Survey web site located at 