Duncan Dam is an earth dam located in Madison County, Tennessee, built in 1930. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 325 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 Duncan Dam
Duncan Dam is a dam in Madison, Tennessee. The dam is owned by Duncan Lake Partnership (local government). It impounds the Harris Creek near Maple Grove.
The dam stands 16 feet tall and stretches 325 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 81 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1930, 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 04/23/2021.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | Madison |
| Nearest City | Maple Grove |
| River/Stream | Harris Creek |
| Coordinates | 35.62583, -88.70083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Length | 325 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 81 acre-ft |
| Max Storage | 81 acre-ft |
| Normal Storage | 68 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | Duncan Lake Partnership |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/23/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN11309 |
| Federal ID | TN11309 |
| More Info | State Dam Safety Program |