John Sheffield Dam is an earth dam located in Sumter County, Georgia, built in 1961. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 890 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 John Sheffield Dam
The primary purpose of John Sheffield Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Collins, Inc. (private). It impounds the Parkers Mill Creek near Americus.
The dam stands 23 feet tall and stretches 890 feet across, creates a reservoir covering 106 acres, has a maximum storage capacity of 1,432 acre-feet, and collects water from a drainage area of 1,200 square miles. Completed in 1961, 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 10/01/1995. That was over 31 years ago.
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Location
| State | Georgia |
| County | Sumter |
| Nearest City | Americus |
| River/Stream | Parkers Mill Creek |
| Coordinates | 32.09750, -84.25472 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 890 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 1,432 acre-ft |
| Max Storage | 1,432 acre-ft |
| Normal Storage | 901 acre-ft |
| Surface Area | 106 acres |
| Drainage Area | 1,200 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Collins, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/01/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA01418 |
| Federal ID | GA01418 |
| More Info | State Dam Safety Program |