Dynne Creek W/s Dam Site 3 is an earth dam located in Cleburne County, Alabama, built in 1987. It carries a Significant hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 1,034 ft long, taller than 65% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Dynne Creek W/s Dam Site 3
The primary purpose of Dynne Creek W/s Dam Site 3 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 C.i. Thrower (private). It impounds the Tr-dynne Creek near Heflin.
The dam stands 29 feet tall and stretches 1,034 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 1,003 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1987, the structure is 39 years old.
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. The most recent inspection on record was 04/13/1999. That was over 27 years ago.
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Location
| State | Alabama |
| County | Cleburne |
| Nearest City | Heflin |
| River/Stream | Tr-dynne Creek |
| Coordinates | 33.56670, -85.53330 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,034 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 1,003 acre-ft |
| Max Storage | 1,003 acre-ft |
| Normal Storage | 91 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 3,960 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | C.i. Thrower |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 04/13/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AL02446 |
| Federal ID | AL02446 |
| More Info | ASDSO on Alabama (no state dam safety program) |