Old Stone Fort Dam is a concrete dam located in Coffee County, Tennessee, built in 1962. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 190 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Old Stone Fort Dam
Old Stone Fort Dam is a dam in Coffee, Tennessee. The dam is owned by Tdec (state). It impounds the Duck River.
The dam stands 10 feet tall and stretches 190 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 68 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1962, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/11/2023.
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Location
| State | Tennessee |
| County | Coffee |
| River/Stream | Duck River |
| Coordinates | 35.48417, -86.10917 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 10 ft |
| Dam Length | 190 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 68 acre-ft |
| Max Storage | 68 acre-ft |
| Normal Storage | 68 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Tdec |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/11/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN03110 |
| Federal ID | TN03110 |
| More Info | State Dam Safety Program |