Alta Lake Dam
Alta Lake Dam is an earth dam located in Irwin County, Georgia, built in 1963. It carries a Low hazard potential classification.
About Alta Lake Dam
The primary purpose of Alta Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Benhill-irwin Joint Development Authority (private). It impounds the Unknown near North Ocilla Environs.
The dam stands 13 feet tall and stretches 792 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 116 acre-feet, and collects water from a drainage area of 144 square miles. Completed in 1963, 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 10/01/2020.
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Location
| State | Georgia |
| County | Irwin |
| Nearest City | North Ocilla Environs |
| River/Stream | Unknown |
| Coordinates | 31.65417, -83.26861 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 792 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 116 acre-ft |
| Max Storage | 116 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 144 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Benhill-Irwin Joint Development Authority |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/01/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA00945 |
| Federal ID | GA00945 |
| More Info | State Dam Safety Program |