Duval Dam East
Duval Dam East is an earth dam located in Travis County, Texas, built in 1984. It carries a High hazard potential classification.
About Duval Dam East
The primary purpose of Duval Dam East 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 City Of Austin (local government). It impounds the Walnut Creek near Austin.
The dam stands 36 feet tall and stretches 525 feet across, has a maximum storage capacity of 165 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1984, the structure is 42 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 07/29/2024.
At 36 feet, this dam is taller than 83% 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 | Travis |
| Nearest City | Austin |
| River/Stream | Walnut Creek |
| Coordinates | 30.41070, -97.71981 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 525 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 165 acre-ft |
| Max Storage | 165 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 55 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CITY OF AUSTIN |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 07/29/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX05957 |
| Federal ID | TX05957 |
| More Info | State Dam Safety Program |