Middle Fork Obion #11 Dam is an earth dam located in Weakley County, Tennessee, built in 1974. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 27 ft27 ft tall and 685 ft long, taller than 59% 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 Middle Fork Obion #11 Dam
Middle Fork Obion #11 Dam is a dam in Weakley, Tennessee. The dam is owned by Middle Fork Obion W.d. (local government).
The dam stands 27 feet tall and stretches 685 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 656 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1974, the structure is well into its service life at over 50 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 01/15/2026.
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Location
| State | Tennessee |
| County | Weakley |
| Nearest City | Gleason |
| Coordinates | 36.23500, -88.56139 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Length | 685 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 656 acre-ft |
| Max Storage | 656 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Middle Fork Obion W.d. |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/15/2026 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN18319 |
| Federal ID | TN18319 |
| More Info | State Dam Safety Program |