Martinez Creek Ws Scs Site 6a Dam
Martinez Creek Ws Scs Site 6a Dam is an earth dam located in Bexar County, Texas, built in 1966. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Martinez Creek Ws Scs Site 6a Dam
The primary purpose of Martinez Creek Ws Scs Site 6a 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 Alamo Swcd;san Antonio River Authority (local government). It impounds the Salitrillo Creek.
The dam stands 44 feet tall and stretches 1,552 feet across, creates a reservoir covering 52 acres, has a maximum storage capacity of 6,938 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 1966, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 04/13/2021.
At 44 feet, this dam is taller than 90% of dams nationwide.
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 | Bexar |
| River/Stream | Salitrillo Creek |
| Coordinates | 29.47845, -98.29030 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 36 ft |
| Dam Length | 1,552 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 6,938 acre-ft |
| Max Storage | 6,938 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 52 acres |
| Drainage Area | 16 sq mi |
| Max Discharge | 50,896 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ALAMO SWCD;SAN ANTONIO RIVER AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/13/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX01464 |
| Federal ID | TX01464 |
| More Info | State Dam Safety Program |