Simmons Dam is an earth dam located in Humphreys County, Tennessee, built in 1971. It carries a Significant hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 650 ft long, taller than 72% 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 Simmons Dam
Simmons Dam is a dam in Humphreys, Tennessee. The dam is owned by Dettwiller, Frederick G. (private). It impounds the Culvert Branch near Fwe Chapel.
The dam stands 31 feet tall and stretches 650 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 193 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, 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. The most recent inspection on record was 01/19/2021.
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Location
| State | Tennessee |
| County | Humphreys |
| Nearest City | Fwe Chapel |
| River/Stream | Culvert Branch |
| Coordinates | 36.08306, -87.54694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Length | 650 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 193 acre-ft |
| Max Storage | 193 acre-ft |
| Normal Storage | 158 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Dettwiller, Frederick G. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 01/19/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN08502 |
| Federal ID | TN08502 |
| More Info | State Dam Safety Program |