Chewalla Lake Dam (lt 7-1)
Chewalla Lake Dam (lt 7-1) is an earth dam located in Marshall County, Mississippi, built in 1966. It carries a Low hazard potential classification.
About Chewalla Lake Dam (lt 7-1)
The primary purpose of Chewalla Lake Dam (lt 7-1) is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Usda Fs (federal). It impounds the Chewalla Creek near Holly Springs.
The dam stands 48 feet tall and stretches 2,620 feet across, has a maximum storage capacity of 9,900 acre-feet, and collects water from a drainage area of 29 square miles. Completed in 1966, the structure is well into its service life at over 50 years old.
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 04/04/2018.
At 48 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Mississippi |
| County | Marshall |
| Nearest City | Holly Springs |
| River/Stream | Chewalla Creek |
| Coordinates | 34.72333, -89.33833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 48 ft |
| Dam Height | 42 ft |
| Dam Length | 2,620 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 9,900 acre-ft |
| Max Storage | 9,900 acre-ft |
| Normal Storage | 1,450 acre-ft |
| Drainage Area | 29 sq mi |
| Max Discharge | 18,369 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 04/04/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS00943 |
| Federal ID | MS00943 |
| More Info | State Dam Safety Program |