San Marcos State Fish Hatchery
San Marcos State Fish Hatchery is an earth dam located in Hays County, Texas, built in 1948. It carries a Significant hazard potential classification and has a fair condition assessment.
About San Marcos State Fish Hatchery
San Marcos State Fish Hatchery is a dam in Hays, Texas. The dam is owned by Texas Parks And Wildlife Department (state). It impounds the Off Ch-san Marcos River near San Marcos.
The dam stands 21 feet tall and stretches 3,200 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/08/2023.
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Location
| State | Texas |
| County | Hays |
| Nearest City | San Marcos |
| River/Stream | Off Ch-san Marcos River |
| Coordinates | 29.86000, -97.93333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 3,200 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | TEXAS PARKS AND WILDLIFE DEPARTMENT |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/08/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX06338 |
| Federal ID | TX06338 |
| More Info | State Dam Safety Program |