Allison Derby is an earth dam located in Sumter County, Alabama, built in 1961. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 600 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 Allison Derby
The primary purpose of Allison Derby is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by E a Derby (private). It impounds the Tr-cotohaga Creek near Whitfield.
The dam stands 15 feet tall and stretches 600 feet across, and has a maximum storage capacity of 78 acre-feet. Completed in 1961, 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.
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Location
| State | Alabama |
| County | Sumter |
| Nearest City | Whitfield |
| River/Stream | Tr-cotohaga Creek |
| Coordinates | 32.36667, -88.15333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 600 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 78 acre-ft |
| Max Storage | 78 acre-ft |
| Normal Storage | 78 acre-ft |
Ownership & Safety
| Purpose | Recreation |
| Owner | E a Derby |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | AL00213 |
| Federal ID | AL00213 |
| More Info | ASDSO on Alabama (no state dam safety program) |