Thompson Lake Dam is an earth dam located in Williamson County, Tennessee, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 220 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 Thompson Lake Dam
Thompson Lake Dam is a dam in Williamson, Tennessee. The dam is owned by Rolling Hills Strategic Investments (private). It impounds the Trib-mud Creek near Duplex.
The dam stands 18 feet tall and stretches 220 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 65 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 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 10/11/2021.
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Location
| State | Tennessee |
| County | Williamson |
| Nearest City | Duplex |
| River/Stream | Trib-mud Creek |
| Coordinates | 35.76250, -86.83611 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Length | 220 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Rolling Hills Strategic Investments |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/11/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN18711 |
| Federal ID | TN18711 |
| More Info | State Dam Safety Program |