Lake Gemay Dam, located in Alley Spring, Missouri, serves as a vital flood risk reduction structure along the TR-North Prong Jack Fork River.
Wind
Humidity
Built in 1964, this private earth dam stands at a height of 27 feet and has a length of 470 feet, providing a storage capacity of 53 acre-feet. While primarily designed for flood risk reduction, it also offers recreational opportunities for enthusiasts in the area.
With a low hazard potential and a moderate risk assessment rating, Lake Gemay Dam ensures the safety of the surrounding Texas County community. Despite not being state-regulated, the dam's condition is currently not rated, indicating the need for further assessment. Additionally, the dam features an uncontrolled spillway with a width of 20 feet and no outlet gates, emphasizing its reliance on natural drainage mechanisms. As a significant structure within the Little Rock District, Lake Gemay Dam plays a crucial role in managing water resources in the region.
Overall, Lake Gemay Dam stands as a testament to the importance of effective flood risk reduction measures in mitigating potential hazards and ensuring community safety. As a key infrastructure project in Missouri, it highlights the intersection of water resource management and climate resilience. Moreover, its strategic location and design underscore the crucial role that private entities play in safeguarding against natural disasters and promoting sustainable water management practices in the region.
Year Completed |
1964 |
Dam Length |
470 |
Dam Height |
27 |
River Or Stream |
TR-NORTH PRONG JACK FORK RIV |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
27 |
Drainage Area |
19.2 |
Nid Storage |
53 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Jacks Fork Near Mountain View
|
76cfs |
Jacks Fork At Alley Spring
|
135cfs |
Current River Above Akers
|
196cfs |
Jacks Fork At Eminence
|
260cfs |
Roubidoux Creek Above Ft. Leonard Wood
|
22cfs |
Big Piney River Near Big Piney
|
220cfs |