Big Prairie Creek W/s Dam Site 11 is an earth dam located in Perry County, Alabama, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 1,530 ft long, taller than 68% 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 Big Prairie Creek W/s Dam Site 11
The primary purpose of Big Prairie Creek W/s Dam Site 11 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 Perry Co. Commission (local government). It impounds the Tr-big Prairie Creek near Reynolds Chapel.
The dam stands 30 feet tall and stretches 1,530 feet across, creates a reservoir covering 29 acres, has a maximum storage capacity of 1,988 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1965, 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 06/13/2001. That was over 25 years ago.
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Location
| State | Alabama |
| County | Perry |
| Nearest City | Reynolds Chapel |
| River/Stream | Tr-big Prairie Creek |
| Coordinates | 32.61667, -87.50000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,530 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 1,988 acre-ft |
| Max Storage | 1,988 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 29 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 6,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Perry Co. Commission |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/13/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AL00818 |
| Federal ID | AL00818 |
| More Info | ASDSO on Alabama (no state dam safety program) |