Franklin Reservoir Dam
Franklin Reservoir Dam is an earth dam located in Williamson County, Tennessee, built in 1950. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Franklin Reservoir Dam
Franklin Reservoir Dam is a dam in Williamson, Tennessee. The dam is owned by City Of Franklin (local government). It impounds the Harpeth River (pumped) near Franklin.
The dam stands 15 feet tall and stretches 4,340 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 395 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 01/21/2025.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Tennessee dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | Williamson |
| Nearest City | Franklin |
| River/Stream | Harpeth River (pumped) |
| Coordinates | 35.90361, -86.85389 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 4,340 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 395 acre-ft |
| Max Storage | 395 acre-ft |
| Normal Storage | 348 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | City Of Franklin |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/21/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TN18721 |
| Federal ID | TN18721 |
| More Info | State Dam Safety Program |