-More than 50,000 homes totaling more than $13 billion in reconstruction cost at risk-
Feb 15, 2017 -- According to new data analysis from CoreLogic®, within the six primary counties at risk if the Oroville Dam were to fail completely, 50,047 single- and multi-family residential homes* could be damaged with an estimated reconstruction cost value (RCV) of $13.3 billion. Figure 1 shows the number of homes along with the RCV in Butte, Colusa, Glenn, Sutter, Yolo and Yuba counties in California. The RCV reflects the cost to rebuild a property assuming 100-percent destruction. Of the at-risk homes, only 12 percent are in a Special Flood Hazard Area (SFHA) as designated by the Federal Emergency Management Agency (FEMA). Homes with a mortgage identified as in an SFHA are required to carry flood insurance, but many homeowners do not carry flood insurance if they are not required to do so. Figure 2 shows the number of homes along with the RCV for the most at-risk cities** that could be affected by the dam’s failure.
Figure 1: Total Homes at Risk and Reconstruction Cost Value by County
| County | Number of Homes | Estimated RCV |
| Butte | 15,750 | $3,368,371,427 |
| Colusa | 2,344 | $633,516,296 |
| Glenn | 42 | $8,202,197 |
| Sutter | 25,504 | $7,604,338,675 |
| Yolo | 262 | $64,058,854 |
| Yuba | 6,145 | $1,584,443,943 |
| TOTAL | 50,047 | $13,262,931,392 |
Figure 2: Total Homes at Risk and Reconstruction Cost Value by City and ZIP Code
| City | Zip | Number of Homes | Estimated RCV |
| Yuba City | 95993 | 10,384 | $3,444,062,491 |
| Yuba City | 95991 | 10,293 | $2,901,591,425 |
| Oroville | 95965 | 6,867 | $1,387,826,184 |
| Oroville | 95966 | 4,528 | $912,344,538 |
| Marysville | 95901 | 5,237 | $1,369,704,343 |
| Gridley | 95948 | 3,122 | $810,017,464 |
| Live Oak | 95953 | 2,950 | $768,036,402 |
| Colusa | 95932 | 2,052 | $577,478,166 |
| Sutter | 95982 | 1,143 | $314,284,022 |
| Biggs | 95917 | 990 | $231,498,912 |
| TOTAL | 47,566 | $12,716,843,947 |
The majority of homes at risk are between 20 and 60 miles from the dam, totaling 33,967 properties with an estimated RCV of $9.8 billion. Additionally, there are 16,080 homes at risk of damage less than 20 miles from the dam with an estimated RCV of $3.5 billion.
*The analysis encompasses single-family residential structures and also includes mobile homes, duplexes, manufactured homes and cabins, among other non-traditional home types.
**The city-level data represents 95 percent of the cities affected. The remaining 5 percent are included in the county totals.
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Alexandra Hayes
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