Mcnairy Cypress Creek #9 Dam
Mcnairy Cypress Creek #9 Dam is an earth dam located in McNairy County, Tennessee, built in 1985. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Mcnairy Cypress Creek #9 Dam
Mcnairy Cypress Creek #9 Dam is a dam in McNairy, Tennessee. The dam is owned by Mcnairy County (local government). It impounds the Cypress Creek.
The dam stands 30 feet tall and stretches 1,325 feet across, creates a reservoir covering 158 acres, has a maximum storage capacity of 6,119 acre-feet, and collects water from a drainage area of 9 square miles. Completed in 1985, the structure is 41 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/25/2024.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Tennessee dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Tennessee |
| County | McNairy |
| River/Stream | Cypress Creek |
| Coordinates | 35.26972, -88.58250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Length | 1,325 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 6,119 acre-ft |
| Max Storage | 6,119 acre-ft |
| Normal Storage | 922 acre-ft |
| Surface Area | 158 acres |
| Drainage Area | 9 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | McNairy County |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/25/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TN10913 |
| Federal ID | TN10913 |
| More Info | State Dam Safety Program |