Powell Creek W/s Dam Site 4a is an earth dam located in Marengo County, Alabama, built in 1990. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 2,200 ft long. 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 4a
The primary purpose of Powell Creek W/s Dam Site 4a 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 James Lewis (private). It impounds the Powell Creek near Providence.
The dam stands 20 feet tall and stretches 2,200 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 1,564 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1990, the structure is 36 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 | Powell Creek |
| Coordinates | 32.45420, -87.72830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 2,200 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 1,564 acre-ft |
| Max Storage | 1,564 acre-ft |
| Normal Storage | 323 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 150 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | James Lewis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/15/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AL02361 |
| Federal ID | AL02361 |
| More Info | ASDSO on Alabama (no state dam safety program) |