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2025 Hazard Mitigation Plan <br />Kittitas County, Washington <br />Table 4-82. Hazus 500-Year Flood Building Related Economic Loss Estimates <br />(Millions of Dollars) <br />Hazus estimates the number of households that are expected to be displaced from their homes due to <br />the flood incident and associated potential evacuation. Hazus also estimates the number of displaced <br />individuals that will require accommodations in temporary public shelters. The model estimates 1,195 <br />households (3,584 people) will be displaced due to the flood. Displacement includes households <br />evacuated from within or very near to the inundated area. Of these, 178 people (out of a total population <br />of 44,271) will seek temporary shelter in public shelters. <br />4.6.5.7. FEMA NRI Expected Annua, Loss Estimates <br />A riverine flooding NRI EAL score, and rating represent a community's relative level of expected building, <br />population, and agriculture loss each year due to riverine flooding when compared to the rest of the <br />United States. The EAL score is positively associated to a community's risk; therefore, a higher EAL <br />score results in a higher Risk lndex score. Table 4-83 outlines the riverine flooding EAL for Kittitas <br />County. <br />Table 4-83. Riverine Flooding Expected Annual Loss (FEMA National Risk lndex) <br />4.6.5.8. Flooding Risk lndex Scores <br />The FEMA riverine flooding Risk lndex score and rating represent a community's relative risk for riverine <br />flooding when compared to the rest of the United States. Table 4-84 illustrates the riverine flooding Risk <br />lndex rating and score for Kittitas County. <br />22.37 161.91Building89.49 25.54 24.53 <br />313.76Content47.25 97.06 63.14 106.32 <br />0.00 15.O2 9.65 2.31 26.98lnventory <br />130.99 502.66 <br />Building <br />Loss <br />TOTAL 136.73 137.63 97.31 <br />1.70 22.44 108.13lncome1.85 82.14 <br />31.97 89.64Relocation33.53 22.22 1.91 <br />42.51Rental <br />lncome 14,15 15.34 0.57 12.44 <br />677.92Wage4.37 87.99 2.87 582.70 <br />207.70 7.05 649.55 918.20 <br />Business <br />lnterruptions <br />TOTAL 53.90 <br />Others TotalArea Residential Commercial lndustrial <br />$2.4 Million 86.2 Very HighKittitas County $186,606 $2.2 Million $8,521 <br />Expected annual /oss scores are calculated utilizing an equation that combines values for exposure, annualized frequency, and historic loss <br />ratios (Expected Annual Loss = Exposure x Annualized Frequency x Historic Loss Ratio). <br />Population <br />Equivalence <br />Total <br />Expected <br />Annual <br />Loss <br />Expected <br />Annual <br />Loss <br />Score <br />RatingJurisdictionBuilding <br />Value <br />Agriculture <br />Value <br />Chapter 4: Hazard ldentification and Risk Assessment 140