Leona River Ws Scs Site 1 Dam
Leona River Ws Scs Site 1 Dam is an earth dam located in Uvalde County, Texas, built in 1986. It carries a High hazard potential classification.
About Leona River Ws Scs Site 1 Dam
The primary purpose of Leona River Ws Scs Site 1 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Edwards Aquifer Authority;nueces Frio Sabinal Swcd;uvalde County (local government). It impounds the Cooks Slough.
The dam stands 28 feet tall and stretches 7,860 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 6,238 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1986, the structure is 40 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 06/21/2017. That was 8 years ago, which is on the longer end for a high-hazard structure.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Uvalde |
| River/Stream | Cooks Slough |
| Coordinates | 29.27000, -99.83333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 7,860 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 6,238 acre-ft |
| Max Storage | 6,238 acre-ft |
| Normal Storage | 219 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 11,979 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | EDWARDS AQUIFER AUTHORITY;NUECES FRIO SABINAL SWCD;UVALDE COUNTY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 06/21/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX06456 |
| Federal ID | TX06456 |
| More Info | State Dam Safety Program |