Columbia Dam
Columbia Dam is a concrete dam located in Maury County, Tennessee, built in 1920. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Columbia Dam
The primary purpose of Columbia Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Columbia Power & Water Systems (local government). It impounds the Duck River.
The dam stands 25 feet tall and stretches 578 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1920, the structure is over a century 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 09/19/2023.
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Location
| State | Tennessee |
| County | Maury |
| River/Stream | Duck River |
| Coordinates | 35.62056, -87.02139 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Length | 578 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 700 acre-ft |
| Max Storage | 700 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Columbia Power & Water Systems |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/19/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN11935 |
| Federal ID | TN11935 |
| More Info | State Dam Safety Program |