Willoughby Dam
Willoughby Dam is an earth dam located in Madison County, Tennessee, built in 1994. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Willoughby Dam
Willoughby Dam is a dam in Madison, Tennessee. The dam is owned by Wtrba (state).
The dam stands 30 feet tall and stretches 1,060 feet across, creates a reservoir covering 26 acres, has a maximum storage capacity of 380 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/13/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | Madison |
| Coordinates | 35.62639, -88.65694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Length | 1,060 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 380 acre-ft |
| Max Storage | 380 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Wtrba |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/13/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN11342 |
| Federal ID | TN11342 |
| More Info | State Dam Safety Program |