(River/Stream Floodplain Scale, All Risk Indicators Report)
Ranks 34th 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 Shenandoah River ranks 34th of 156 river/stream floodplains in the state with a Cumulative Flood Risk Score of 78.7%. 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 Shenandoah River ranks 34th of 156 river/stream floodplains in the state with a Cumulative Flood Risk Score of 78.7%. Below are all 8 flood risk indicators used in the risk index with the indicator scores and rankings.
Category | Flood Risk Indicator | Value for Shenandoah River | Indicator Score (0 - 100%) |
Indicator Rating |
---|---|---|---|---|
Floodplain Characteristics | Floodplain Length Click for more information. | 30.2 Miles | 68.3% | Relatively High |
Flood Depth Median Click for more information. | 7.4 Ft | 99.3% | VERY HIGH | |
Floodplain Characteristics Index, 12th | 92.9% | VERY HIGH | ||
Building Exposure | Building Floodplain Count Click for more information. | 81 | 3.8% | Very Low |
Building Floodway Count Click for more information. | 32 | 60.6% | Relatively High | |
Building Density Click for more information. | 2.68 /Mile | 7.7% | Very Low | |
Building Exposure Index, 131st | 16.1% | Very Low | ||
Building Characteristics | Building Median Value Click for more information. | $95,100 | 98.0% | VERY HIGH |
Building Characteristics Index, 4th | 98.0% | VERY HIGH | ||
Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 28 | 72.2% | Relatively High |
Bldg. Substantial Damage Ratio Click for more information. | 34.6% | 98.0% | VERY HIGH | |
Building Damage Loss Index, 21st | 86.4% | Very High | ||
Risk Index | Cumulative Index Click for more information. | 78.7% | Relatively High |
Table 3. Flood Risk Index Comparison: Flood risk indicator values for Shenandoah River compared to descriptive statistics of all river/stream floodplains.
Category | Flood Risk Indicator | Value for Shenandoah River | Median Value | Mean Value | Min Value | Max Value | State Stats |
---|---|---|---|---|---|---|---|
Floodplain Characteristics | Floodplain Length Click for more information. | 30.2 Miles | 18.1 Miles | 38.0 Miles | 0.5 Miles | 438.0 Miles | 17,205.1 Miles |
Flood Depth Median Click for more information. | 7.4 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. | 81 | 173 | 369 | 4 | 6,920 | 82,408 |
Building Floodway Count Click for more information. | 32 | 15 | 51 | 0 | 632 | 8,237 | |
Building Density Click for more information. | 2.68 /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. | $95,100 | $34,850 | $41,061 | $10,000 | $247,700 | $38,200 |
Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 28 | 7 | 35 | 0 | 918 | 6,493 |
Bldg. Substantial Damage Ratio Click for more information. | 34.6% | 4.1% | 7.4% | 0.0% | 65.2% | 7.9% | |
Risk Indicator data last updated August 2024