Thompson Creek #4 (garrett) Dam is an earth dam located in Weakley County, Tennessee, built in 1960. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 28 ft28 ft tall and 1,307 ft long, taller than 62% of U.S. dams with a recorded height. 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 Creek #4 (garrett) Dam
Thompson Creek #4 (garrett) Dam is a dam in Weakley, Tennessee. The dam is owned by Twra (state).
The dam stands 28 feet tall and stretches 1,307 feet across, creates a reservoir covering 183 acres, has a maximum storage capacity of 3,242 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1960, 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 01/12/2026.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | Weakley |
| Nearest City | Ore Springs |
| Coordinates | 36.32583, -88.55667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Length | 1,307 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 3,242 acre-ft |
| Max Storage | 3,242 acre-ft |
| Normal Storage | 1,470 acre-ft |
| Surface Area | 183 acres |
| Drainage Area | 3 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Twra |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/12/2026 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN18306 |
| Federal ID | TN18306 |
| More Info | State Dam Safety Program |