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Dam Failure Table 8-5. Loss Estimates for Dam Failure Structure Debris (tons) 1,240,544 Buildings Impacteda 26,780 Structure Value Damaged $4,787,170,491 Content Value Damaged $5,002,136,295 Total Value Damaged $9,789,306,786 Damage as % of Total Value 5.1% a. “Impacted” means water over the 1st floor of the structure Figure 8-5. Estimated Damage to Critical Facilities from Dam Failure Typical vulnerabilities of affected critical facilities include the following:  Transportation routes are vulnerable to dam inundation and have the potential to be wiped out, creating isolation issues and significant disruption to travel. Those that are most vulnerable are those that are already in poor condition and would not be able to withstand a large water surge.  Utilities such as overhead power lines, cable, and phone lines in the inundation zone could be vulnerable. If phone lines were lost, significant communication issues may occur in the planning area due to limited cell phone reception in many areas.  Emergency response would be hindered due to the loss of transportation routes the inundation zone.  Some protective-function facilities in the safety and security category located in the inundation zone could be lost.  Recovery time to restore many critical functions after an event may be lengthy. 8-11 100.00 80 70 80.00 71.4 60 66.2 60.00 41 50 34 47.8 40 40.00 34.9 30 25.5 27.8 28.1 20.5 20 20.00 19.3 7 15.1 4 10 N/A 2.9 0.00 0 Safety and Food, Water and Security Sheltering Health and Medical Energy Communications Transportation Hazardous Material 37.9 53 67 76.7 71 % Damage to Structure % Damage to Contents Number of Facilities Affected Average Damage as % of Total Value Number of Facilities Affected