Cobb Lake Dam is an earth dam located in Washington County, Georgia, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 580 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 Cobb Lake Dam
The primary purpose of Cobb Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Cobb, Grover (private). It impounds the Unknown near Davisboro Environs.
The dam stands 15 feet tall and stretches 580 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 179 acre-feet, and collects water from a drainage area of 400 square miles. Completed in 1968, 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 11/01/1997. That was over 28 years ago.
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Location
| State | Georgia |
| County | Washington |
| Nearest City | Davisboro Environs |
| River/Stream | Unknown |
| Coordinates | 32.99667, -82.58333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 580 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 179 acre-ft |
| Max Storage | 179 acre-ft |
| Normal Storage | 115 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 400 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Cobb, Grover |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/01/1997 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA02557 |
| Federal ID | GA02557 |
| More Info | State Dam Safety Program |