Griggs Lake Dam South is an earth dam located in Dooly County, Georgia, built in 1976. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 1,236 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 Griggs Lake Dam South
The primary purpose of Griggs Lake Dam South is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Griggs, W. C. and George (private). It impounds the Unknown near Unadilla.
The dam stands 22 feet tall and stretches 1,236 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 385 acre-feet. Completed in 1976, the structure is 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 03/14/2017.
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Location
| State | Georgia |
| County | Dooly |
| Nearest City | Unadilla |
| River/Stream | Unknown |
| Coordinates | 32.24722, -83.65111 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,236 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 385 acre-ft |
| Max Storage | 385 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 26 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Griggs, W. C. and George |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/14/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA02641 |
| Federal ID | GA02641 |
| More Info | State Dam Safety Program |