Gallatin Fossil Plant - Ash Disposal Area Pond D is an earth dam located in Sumner County, Tennessee, built in 1980. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 981 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 Gallatin Fossil Plant - Ash Disposal Area Pond D
Gallatin Fossil Plant - Ash Disposal Area Pond D is a dam in Sumner, Tennessee. The dam is owned by TVA (federal). It impounds the Cumberland River - Offstream near Gallatin.
The dam stands 12 feet tall and stretches 981 feet across, creates a reservoir covering 61 acres, has a maximum storage capacity of 550 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1980, the structure is 46 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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/03/2025.
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Location
| State | Tennessee |
| County | Sumner |
| Nearest City | Gallatin |
| River/Stream | Cumberland River - Offstream |
| Coordinates | 36.33400, -86.41700 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 10 ft |
| Dam Length | 981 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 550 acre-ft |
| Max Storage | 550 acre-ft |
| Normal Storage | 274 acre-ft |
| Surface Area | 61 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 460 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | TVA |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/03/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TN16521 |
| Federal ID | TN16521 |
| More Info | State Dam Safety Program |