The Upper Yockanookany WS Str 2 Dam, located in Ackerman, Mississippi, is a crucial structure owned by the local government for flood risk reduction along the Yockanookany River.
Wind
Humidity
Designed by USDA NRCS and completed in 1979, this earth dam stands at 21 feet high and has a storage capacity of 81 acre-feet. With a hazard potential rated as high, the dam's condition assessment remains satisfactory as of November 2020.
Managed by the Mississippi Department of Environmental Quality, this dam is state-regulated and undergoes regular inspections every five years to ensure its structural integrity. The dam's uncontrolled spillway and outlet gates are designed to handle a maximum discharge of 3,082 cubic feet per second, serving a drainage area of 0.21 square miles. Despite its moderate risk assessment, the dam continues to play a vital role in protecting the surrounding area from potential flooding events, highlighting the importance of water resource management and climate resilience in the region.
Year Completed |
1979 |
Dam Length |
415 |
Dam Height |
21 |
River Or Stream |
UNT OF YOCKANOOKANY RIVER |
Primary Dam Type |
Earth |
Surface Area |
7.2 |
Hydraulic Height |
18 |
Drainage Area |
0.21 |
Nid Storage |
81 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
21 |
Yockanookany River Nr Kosciusko
|
45cfs |
Catalpa Creek At Mayhew
|
2940cfs |
Pearl River At Burnside
|
1070cfs |
Big Black River At West
|
223cfs |
Pearl River At Edinburg
|
182cfs |
Noxubee River At Macon
|
146cfs |