Lake Tanner Dam is an earth dam located in Butler County, Alabama, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 375 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 Lake Tanner Dam
The primary purpose of Lake Tanner Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lawrence Tanner (private). It impounds the Tr-fourmile Mill Branch near Damascus Church.
The dam stands 23 feet tall and stretches 375 feet across, and has a maximum storage capacity of 368 acre-feet. 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.
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Location
| State | Alabama |
| County | Butler |
| Nearest City | Damascus Church |
| River/Stream | Tr-fourmile Mill Branch |
| Coordinates | 31.81000, -86.54167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Length | 375 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 368 acre-ft |
| Max Storage | 368 acre-ft |
| Normal Storage | 368 acre-ft |
| Max Discharge | 1,390 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lawrence Tanner |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | AL00040 |
| Federal ID | AL00040 |
| More Info | ASDSO on Alabama (no state dam safety program) |