Johnson Lake Dam
Johnson Lake Dam is an earth dam located in Bacon County, Georgia, built in 1947. It carries a Low hazard potential classification.
About Johnson Lake Dam
The primary purpose of Johnson Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Boatwright, Darrel (private). It impounds the Tenmile Creek near St James Church Environs.
The dam stands 13 feet tall and stretches 810 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 640 acre-feet, and collects water from a drainage area of 6,000 square miles. Completed in 1947, 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 07/26/2016.
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Location
| State | Georgia |
| County | Bacon |
| Nearest City | St James Church Environs |
| River/Stream | Tenmile Creek |
| Coordinates | 31.51528, -82.39111 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 810 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 640 acre-ft |
| Max Storage | 640 acre-ft |
| Normal Storage | 139 acre-ft |
| Surface Area | 37 acres |
| Drainage Area | 6,000 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Boatwright, Darrel |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/26/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01226 |
| Federal ID | GA01226 |
| More Info | State Dam Safety Program |