Opossum Lake Dam is an earth dam located in Gwinnett County, Georgia. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 830 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 Opossum Lake Dam
The primary purpose of Opossum Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gwinnett County (local government). It impounds the Pounds Creek near Snellville.
The dam stands 19 feet tall and stretches 830 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 1,000 square miles.
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 10/04/2016. That was over 10 years ago.
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Location
| State | Georgia |
| County | Gwinnett |
| Nearest City | Snellville |
| River/Stream | Pounds Creek |
| Coordinates | 33.83333, -84.09019 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 830 ft |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 1,000 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Gwinnett County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/04/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA00579 |
| Federal ID | GA00579 |
| More Info | State Dam Safety Program |