50Total Dams
21High Hazard
11Significant
Dam Safety in Hays County, Texas
Hays County has 50 dams tracked in the National Inventory of Dams. Of these, 21 are classified as high hazard — meaning failure would probably cause loss of human life. Another 11 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Hays County is 63 years old. The most common purpose is flood risk reduction. The tallest dam is Upper San Marcos River Ws Scs Site 4 at 101 ft.
Explore more: Oldest dams in Texas · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Upper San Marcos River Ws Scs Site 4 | High | Satisfactory | 101 | Flood Risk Reduction | |
| Upper San Marcos River Ws Scs Site 1 | High | Satisfactory | 80 | Flood Risk Reduction | 1983 |
| Upper San Marcos River Ws NRCS Site 5 Dam | High | Fair | 74 | Flood Risk Reduction | 1989 |
| Upper San Marcos River Ws Scs Site 3 | High | Satisfactory | 60 | Flood Risk Reduction | 1991 |
| Upper San Marcos River Ws Scs Site 2 | High | Satisfactory | 51 | Fish and Wildlife Pond | 1985 |
| Plum Creek Ws Scs Site 5 Dam | High | Not assessed | 42 | Flood Risk Reduction | 1963 |
| York Creek Ws Scs Site 5 Dam | High | Fair | 41 | Flood Risk Reduction | 1963 |
| Plum Creek Ws Scs Site 16 Dam | High | Satisfactory | 41 | Flood Risk Reduction | 1975 |
| Plum Creek Ws Scs Site 2 Dam | High | Not assessed | 38 | Flood Risk Reduction | 1969 |
| Plum Creek Ws Scs Site 10 Dam | High | Not assessed | 36 | Flood Risk Reduction | 1963 |
| Plum Creek Ws Scs Site 7 Dam | High | Fair | 36 | Flood Risk Reduction | 1975 |
| Plum Creek Ws Scs Site 4 Dam | High | Not assessed | 34 | Flood Risk Reduction | 1962 |
| Plum Creek Ws Scs Site 6 Dam | High | Not assessed | 34 | Flood Risk Reduction | 1967 |
| Plum Creek Ws Scs Site 1 Dam | High | Fair | 33 | Flood Risk Reduction | 1966 |
| Plum Creek Ws Scs Site 11 Dam | High | Fair | 32 | Irrigation | 1962 |
| Plum Creek Ws Scs Site 12 Dam | High | Not assessed | 28 | Flood Risk Reduction | 1963 |
| Plum Creek Ws Scs Site 3 Dam | High | Not assessed | 26 | Flood Risk Reduction | 1962 |
| Cullen Country Lake Dam | High | Not assessed | 16 | ||
| Lake Laurel Dam | High | Not assessed | 16 | Recreation | 1977 |
| Hog Creek Dam | High | Not assessed | 15 | Recreation | 1974 |
| Little Barton Creek Dam | High | Not assessed | 14 | ||
| Purola Lake Dam | Significant | Not assessed | 37 | Water Supply | 1967 |
| River Oaks Ranch Dam | Significant | Fair | 25 | Recreation | |
| Solar Bliss Dam | Significant | Not assessed | 22 | ||
| Larsen Dam | Significant | Not assessed | 21 | ||
| Seven H Ranch Lake Dam | Significant | Not assessed | 21 | Water Supply | 1963 |
| San Marcos State Fish Hatchery | Significant | Fair | 21 | Other | 1948 |
| Parkers Pond Dam | Significant | Not assessed | 21 | Water Supply | 1970 |
| Mcalister Ranch Dam No 4 | Significant | Not assessed | 17 | Irrigation | 1975 |
| Lone Man Dam | Significant | Not assessed | 13 | ||
| Cummings Dam | Significant | Not assessed | 10 | Irrigation | 1905 |
| Aquarena Dam | Significant | Unsatisfactory | 7 | Recreation | 1849 |
| Pierce Lake Dam | Low | Not assessed | 37 | Recreation | 1974 |
| Boes Ski Lake Dam | Low | Not assessed | 35 | 2012 | |
| Scrutchin Lake Dam | Low | Not assessed | 30 | 1958 | |
| Sycamore Creek Dam | Low | Not assessed | 29 | ||
| Lutringer Lake Dam | Low | Not assessed | 26 | Flood Risk Reduction | 1970 |
| Centerpoint Dam | Low | Not assessed | 25 | ||
| Barron Lake Dam | Low | Not assessed | 25 | Recreation | 1967 |
| Brown Ranch Dam | Low | Not assessed | 24 | Irrigation | 1962 |
| Reeves Lake Dam | Low | Not assessed | 20 | Recreation | 1962 |
| Webster Lake Dam | Low | Not assessed | 20 | Recreation | 1958 |
| Alexander Lake Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Md Heatly Dam | Low | Not assessed | 18 | Irrigation | 1965 |
| Clear Lake Dam | Low | Not assessed | 17 | Irrigation | 1952 |
| John F Baugh Dam | Low | Not assessed | 15 | Irrigation | 1955 |
| Cottonwood Creek Detention Dam | Low | Not assessed | 13 | ||
| Boy Scout Dam | Low | Not assessed | 11 | Recreation | 1957 |
| Hays County Park Lake Dam | Low | Not assessed | 8 | Recreation | 1964 |
| Rio Vista Dam | Low | Not assessed | 8 | Recreation | 1904 |