Lower Crystal Lake Dam is an earth dam located in DeKalb County, Georgia, built in 1954. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 41 ft41 ft tall and 795 ft long, taller than 87% 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 Lower Crystal Lake Dam
The primary purpose of Lower Crystal Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hooper, J. R. (private). It impounds the Snapfinger Creek near Stone Mountain.
The dam stands 41 feet tall and stretches 795 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 104 acre-feet, and collects water from a drainage area of 270 square miles. Completed in 1954, the structure is well into its service life at over 50 years old.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Georgia |
| County | DeKalb |
| Nearest City | Stone Mountain |
| River/Stream | Snapfinger Creek |
| Coordinates | 33.75667, -84.20500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 795 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 104 acre-ft |
| Max Storage | 104 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 270 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Hooper, J. R. |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01315 |
| Federal ID | GA01315 |
| More Info | State Dam Safety Program |