Dams in Hays County, Texas
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 dams have 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 Rated | 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 Rated | 38 | Flood Risk Reduction | 1969 |
| Plum Creek Ws Scs Site 10 Dam | High | Not Rated | 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 Rated | 34 | Flood Risk Reduction | 1962 |
| Plum Creek Ws Scs Site 6 Dam | High | Not Rated | 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 Rated | 28 | Flood Risk Reduction | 1963 |
| Plum Creek Ws Scs Site 3 Dam | High | Not Rated | 26 | Flood Risk Reduction | 1962 |
| Cullen Country Lake Dam | High | Not Rated | 16 | ||
| Lake Laurel Dam | High | Not Rated | 16 | Recreation | 1977 |
| Hog Creek Dam | High | Not Rated | 15 | Recreation | 1974 |
| Little Barton Creek Dam | High | Not Rated | 14 | ||
| Purola Lake Dam | Significant | Not Rated | 37 | Water Supply | 1967 |
| River Oaks Ranch Dam | Significant | Fair | 25 | Recreation | |
| Solar Bliss Dam | Significant | Not Rated | 22 | ||
| Larsen Dam | Significant | Not Rated | 21 | ||
| Seven H Ranch Lake Dam | Significant | Not Rated | 21 | Water Supply | 1963 |
| San Marcos State Fish Hatchery | Significant | Fair | 21 | Other | 1948 |
| Parkers Pond Dam | Significant | Not Rated | 21 | Water Supply | 1970 |
| Mcalister Ranch Dam No 4 | Significant | Not Rated | 17 | Irrigation | 1975 |
| Lone Man Dam | Significant | Not Rated | 13 | ||
| Cummings Dam | Significant | Not Rated | 10 | Irrigation | 1905 |
| Aquarena Dam | Significant | Unsatisfactory | 7 | Recreation | 1849 |
| Pierce Lake Dam | Low | Not Rated | 37 | Recreation | 1974 |
| Boes Ski Lake Dam | Low | Not Rated | 35 | 2012 | |
| Scrutchin Lake Dam | Low | Not Rated | 30 | 1958 | |
| Sycamore Creek Dam | Low | Not Rated | 29 | ||
| Lutringer Lake Dam | Low | Not Rated | 26 | Flood Risk Reduction | 1970 |
| Centerpoint Dam | Low | Not Rated | 25 | ||
| Barron Lake Dam | Low | Not Rated | 25 | Recreation | 1967 |
| Brown Ranch Dam | Low | Not Rated | 24 | Irrigation | 1962 |
| Reeves Lake Dam | Low | Not Rated | 20 | Recreation | 1962 |
| Webster Lake Dam | Low | Not Rated | 20 | Recreation | 1958 |
| Alexander Lake Dam | Low | Not Rated | 20 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Md Heatly Dam | Low | Not Rated | 18 | Irrigation | 1965 |
| Clear Lake Dam | Low | Not Rated | 17 | Irrigation | 1952 |
| John F Baugh Dam | Low | Not Rated | 15 | Irrigation | 1955 |
| Cottonwood Creek Detention Dam | Low | Not Rated | 13 | ||
| Boy Scout Dam | Low | Not Rated | 11 | Recreation | 1957 |
| Hays County Park Lake Dam | Low | Not Rated | 8 | Recreation | 1964 |
| Rio Vista Dam | Low | Not Rated | 8 | Recreation | 1904 |