Shamrock Lake Dam is an earth dam located in Clayton County, Georgia, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 950 ft long, taller than 80% of U.S. dams with a recorded height. 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 Shamrock Lake Dam
The primary purpose of Shamrock Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Clayton County Water Authority (local government). It impounds the Unknown near Stockbridge.
The dam stands 35 feet tall and stretches 950 feet across, creates a reservoir covering 62 acres, has a maximum storage capacity of 1,053 acre-feet, and collects water from a drainage area of 1,335 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 12/10/2014. That was over 11 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Georgia |
| County | Clayton |
| Nearest City | Stockbridge |
| River/Stream | Unknown |
| Coordinates | 33.48067, -84.29650 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 950 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 1,053 acre-ft |
| Max Storage | 1,053 acre-ft |
| Normal Storage | 806 acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 1,335 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Clayton County Water Authority |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/10/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01298 |
| Federal ID | GA01298 |
| More Info | State Dam Safety Program |