Big Lake Dam is an earth dam located in Cobb County, Georgia, built in 1936. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall. 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 Lake Dam
The primary purpose of Big Lake Dam 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 Unknown. It impounds the Rotten Wood Creek Tri near Not Applicable.
The dam stands 20 feet tall, and has a maximum storage capacity of 200 acre-feet. Completed in 1936, the structure is well-established, with more than 75 years of service.
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Location
| State | Georgia |
| County | Cobb |
| Nearest City | Not Applicable |
| River/Stream | Rotten Wood Creek Tri |
| Coordinates | 33.88333, -84.53333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Unknown |
| Owner Type | Not Listed |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01704 |
| Federal ID | GA01704 |
| More Info | State Dam Safety Program |