(River/Stream Floodplain Scale, All Risk Indicators Report)
Ranks 26th of 156 river/stream floodplains in the state
Table 1. Noteworthy Flood Risk Facts: A Cumulative Flood Risk Index of 8 flood factors reveals that Elkhorn Creek ranks 26th of 156 river/stream floodplains in the state with a Cumulative Flood Risk Score of 83.8%. Below are all 8 flood risk indicators used in the risk index. Click on the More Info link for rationale and recommendations of each indicator.
Table 2. Flood Risk Index Scores: A Cumulative Flood Risk Index of 8 flood factors reveals that Elkhorn Creek ranks 26th of 156 river/stream floodplains in the state with a Cumulative Flood Risk Score of 83.8%. Below are all 8 flood risk indicators used in the risk index with the indicator scores and rankings.
Category | Flood Risk Indicator | Value for Elkhorn Creek | Indicator Score (0 - 100%) |
Indicator Rating |
---|---|---|---|---|
Floodplain Characteristics | Floodplain Length Click for more information. | 23.6 Miles | 60.0% | Relatively High |
Flood Depth Median Click for more information. | 3.2 Ft | 89.0% | Very High | |
Floodplain Characteristics Index, 26th | 83.2% | Very High | ||
Building Exposure | Building Floodplain Count Click for more information. | 448 | 80.6% | Very High |
Building Floodway Count Click for more information. | 101 | 84.5% | Very High | |
Building Density Click for more information. | 18.99 /Mile | 65.8% | Relatively High | |
Building Exposure Index, 18th | 89.0% | Very High | ||
Building Characteristics | Building Median Value Click for more information. | $14,650 | 4.5% | Very Low |
Building Characteristics Index, 149th | 4.5% | Very Low | ||
Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 49 | 81.2% | Very High |
Bldg. Substantial Damage Ratio Click for more information. | 10.9% | 76.7% | Relatively High | |
Building Damage Loss Index, 32nd | 80.0% | Very High | ||
Risk Index | Cumulative Index Click for more information. | 83.8% | Very High |
Table 3. Flood Risk Index Comparison: Flood risk indicator values for Elkhorn Creek compared to descriptive statistics of all river/stream floodplains.
Category | Flood Risk Indicator | Value for Elkhorn Creek | Median Value | Mean Value | Min Value | Max Value | State Stats |
---|---|---|---|---|---|---|---|
Floodplain Characteristics | Floodplain Length Click for more information. | 23.6 Miles | 18.1 Miles | 38.0 Miles | 0.5 Miles | 438.0 Miles | 17,205.1 Miles |
Flood Depth Median Click for more information. | 3.2 Ft | 1.1 Ft | 1.5 Ft | 0.0 Ft | 10.4 Ft | 1.8 Ft | |
Building Exposure | Building Floodplain Count Click for more information. | 448 | 173 | 369 | 4 | 6,920 | 82,408 |
Building Floodway Count Click for more information. | 101 | 15 | 51 | 0 | 632 | 8,237 | |
Building Density Click for more information. | 18.99 /Mile | 12.98 /Mile | 17.83 /Mile | 1.04 /Mile | 210.26 /Mile | 0.16 /Mile | |
Building Characteristics | Building Median Value Click for more information. | $14,650 | $34,850 | $41,061 | $10,000 | $247,700 | $38,200 |
Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 49 | 7 | 35 | 0 | 918 | 6,493 |
Bldg. Substantial Damage Ratio Click for more information. | 10.9% | 4.1% | 7.4% | 0.0% | 65.2% | 7.9% | |
Risk Indicator data last updated August 2024