Walnut Grove Lake Dam
Walnut Grove Lake Dam is an earth dam located in Shelby County, Tennessee, built in 1963. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Walnut Grove Lake Dam
The primary purpose of Walnut Grove Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Walnut Grove Lake H.o.a. (private). It impounds the Trib-wolf River near Memphis.
The dam stands 29 feet tall and stretches 915 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 686 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/01/2023.
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Location
| State | Tennessee |
| County | Shelby |
| Nearest City | Memphis |
| River/Stream | Trib-wolf River |
| Coordinates | 35.12194, -89.78528 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Length | 915 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 686 acre-ft |
| Max Storage | 686 acre-ft |
| Normal Storage | 470 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Walnut Grove Lake H.o.a. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/01/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TN15715 |
| Federal ID | TN15715 |
| More Info | State Dam Safety Program |