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2025 Hazard Mitigation Plan <br />Kittitas County, Washington <br /> <br /> <br />Chapter 4: Hazard Identification and Risk Assessment 144 <br />• Areas where landslides have occurred before. <br />• Steep slopes and areas at the bottom of slopes or canyons. <br />• Slopes that have been altered for construction of buildings and roads. <br />• Channels along a stream or river. <br />• Areas where surface runoff is directed. <br />Landslide susceptibility maps describe the relative likelihood of future land sliding based solely on the <br />intrinsic properties of a location or site. There are three (3) site factors that most determine susceptibility <br />– prior failure, rock or soil strength, and steepness of slope. Figure 4-16 illustrates landslide hazard areas <br />in Kittitas County. <br />Figure 4-16. Landslide Hazard Areas in Kittitas County <br /> <br />