Chestnut Lake Dam (tillatoba Creek Structure Y-17b-11 )
Chestnut Lake Dam (tillatoba Creek Structure Y-17b-11 ) is an earth dam located in Yalobusha County, Mississippi, built in 1978. It carries a Low hazard potential classification.
About Chestnut Lake Dam (tillatoba Creek Structure Y-17b-11 )
The primary purpose of Chestnut Lake Dam (tillatoba Creek Structure Y-17b-11 ) 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 U. S. Forest Service (federal). It impounds the Unt Of Tillatoba Creek.
The dam stands 27 feet tall and stretches 660 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 2,009 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1978, the structure is 48 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 08/18/2021.
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Location
| State | Mississippi |
| County | Yalobusha |
| River/Stream | Unt Of Tillatoba Creek |
| Coordinates | 34.01901, -89.81275 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 660 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 2,009 acre-ft |
| Max Storage | 2,009 acre-ft |
| Normal Storage | 175 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,964 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | U. S. FOREST SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Last Inspection | 08/18/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS03607 |
| Federal ID | MS03607 |
| More Info | State Dam Safety Program |