Rainbow Lake Dam is an earth dam located in Lumpkin County, Georgia, built in 1984. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 159 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 Rainbow Lake Dam
The primary purpose of Rainbow Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by R-ranch in the Mountains (private). It impounds the Jarrard Creek near Dahlonega.
The dam stands 21 feet tall and stretches 159 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 105 acre-feet, and collects water from a drainage area of 938 square miles. Completed in 1984, the structure is 42 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 03/09/2016. That was over 10 years ago.
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Location
| State | Georgia |
| County | Lumpkin |
| Nearest City | Dahlonega |
| River/Stream | Jarrard Creek |
| Coordinates | 34.62556, -83.97389 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 159 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 105 acre-ft |
| Max Storage | 105 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 938 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | R-ranch in the Mountains |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/09/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA05733 |
| Federal ID | GA05733 |
| More Info | State Dam Safety Program |