Powell Creek W/s Dam Site 7 is an earth dam located in Marengo County, Alabama, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 1,926 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 Powell Creek W/s Dam Site 7
The primary purpose of Powell Creek W/s Dam Site 7 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 Richard Allen (private). It impounds the Rocky Branch near Providence.
The dam stands 29 feet tall and stretches 1,926 feet across, has a maximum storage capacity of 1,296 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/15/1999. That was over 27 years ago.
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Location
| State | Alabama |
| County | Marengo |
| Nearest City | Providence |
| River/Stream | Rocky Branch |
| Coordinates | 32.42000, -87.74000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,926 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 1,296 acre-ft |
| Max Storage | 1,296 acre-ft |
| Normal Storage | 71 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 420 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Richard Allen |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/15/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AL00020 |
| Federal ID | AL00020 |
| More Info | ASDSO on Alabama (no state dam safety program) |