17Total Dams
8High Hazard
2Significant
Dam Safety in Starr County, Texas
Starr County has 17 dams tracked in the National Inventory of Dams. Of these, 8 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Starr County is 60 years old. The most common purpose is flood risk reduction. The tallest dam is Falcon Dam at 175 ft.
Explore more: Oldest dams in Texas · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Falcon Dam | High | Fair | 175 | Flood Risk Reduction | 1953 |
| Olmitos and Garcias Crks Ws Scs Site 5 Dam | High | Fair | 48 | Flood Risk Reduction | 1963 |
| Olmitos and Garcias Crks Ws Scs Site 7 Dam | High | Fair | 45 | Flood Risk Reduction | 1963 |
| Olmitos and Garcias Crks Ws Scs Site 6 Dam | High | Fair | 41 | Flood Risk Reduction | 1962 |
| La Casita Dam | High | Not assessed | 32 | Irrigation | 1966 |
| Olmitos and Garcias Crks Ws Scs Site 4 Dam | High | Unsatisfactory | 29 | Flood Risk Reduction | 1963 |
| Olmitos and Garcias Crks Ws Scs Site 2 Dam | High | Not assessed | 21 | Flood Risk Reduction | 1963 |
| Olmitos and Garcias Crks Ws Scs Site 1 Dam | High | Not assessed | 18 | Flood Risk Reduction | 1962 |
| Mangus Lake Dam | Significant | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Olmitos and Garcias Crks Ws Scs Site 3 Dam | Significant | Unsatisfactory | 18 | Flood Risk Reduction | 1963 |
| Tx No Name No 54 Dam | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Munoz Lake Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Perez Dam | Low | Not assessed | 17 | 1995 | |
| Lower Ellison Lake Dam | Low | Not assessed | 17 | 1959 | |
| Alvarez Lake Dam | Low | Not assessed | 16 | 1964 | |
| Guerro Lake Dam | Low | Not assessed | 14 | 1964 | |
| Upper Ellison Lake Dam | Low | Not assessed | 10 | Irrigation | 1957 |