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2025 Hazard Mitigation Plan <br />Kittitas County, Washington <br /> <br /> <br />Chapter 4: Hazard Identification and Risk Assessment 89 <br />Figure 4-6. Levees in Kittitas County <br /> <br />4.6.2.3. Hazard Extent/Intensity <br />Federal guidelines provide for a three (3) level classification system that defines low, significant, and <br />high-hazard potential classifications depending on the potential for loss of life, economic loss, and <br />environmental damage resulting from a hypothetical dam failure. The USACE dam hazard categories are <br />listed in Table 4-35. <br />Table 4-35. USACE Dam Hazard Categories <br />Hazard <br />Category Direct Loss of Life Lifeline Losses Property Losses Environmental <br />Losses <br />Low <br />None (rural location, no <br />permanent structures for <br />human habitation). <br />No disruption of <br />services (cosmetic or <br />rapidly repairable <br />damage). <br />Private agricultural <br />lands, equipment, and <br />isolated buildings. <br />Minimal incremental <br />damage. <br />Significant <br />Rural location, only <br />transient or day-use <br />facilities. <br />Disruption of essential <br />facilities and access. <br />Major public and <br />private facilities. <br />Major mitigation <br />required.