Mann Lake Dam is an earth dam located in Rockdale County, Georgia, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 310 ft long, taller than 55% 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 Mann Lake Dam
The primary purpose of Mann Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mann, Jack Lamar (private). It impounds the Shipley Branch near Lakeview Estates.
The dam stands 26 feet tall and stretches 310 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 91 acre-feet, and collects water from a drainage area of 440 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 09/01/2018.
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Location
| State | Georgia |
| County | Rockdale |
| Nearest City | Lakeview Estates |
| River/Stream | Shipley Branch |
| Coordinates | 33.69667, -84.05000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 310 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 91 acre-ft |
| Max Storage | 91 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 440 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mann, Jack Lamar |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/01/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01280 |
| Federal ID | GA01280 |
| More Info | State Dam Safety Program |