Grassy Creek Watershed Dam G-55, located in Ewing, Missouri, was completed in 1993 by the USDA NRCS with a primary purpose of flood risk reduction.
Wind
Humidity
This earth dam, standing at a height of 26 feet and a length of 420 feet, serves the Grassy Creek area and has a storage capacity of 71 acre-feet. The dam is situated in Lewis County, Missouri, within the Rock Island District, and is regulated by the state with low hazard potential.
Despite its low hazard potential, the dam has a moderate risk assessment due to its outdated inspection date in 1999 and lack of emergency action preparedness measures. Grassy Creek Watershed Dam G-55, with a normal storage capacity of 20 acre-feet and a drainage area of 64 square miles, plays a crucial role in fire protection, stock, small fish pond, fish and wildlife pond, and flood risk reduction activities in the region. Climate and water resource enthusiasts will find this dam's design and purpose to be of interest in understanding how such infrastructure plays a vital role in managing water resources and mitigating flood risks in the area.
Year Completed |
1993 |
Dam Length |
420 |
Dam Height |
26 |
River Or Stream |
GRASSY CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
26 |
Drainage Area |
64 |
Nid Storage |
71 |
Structural Height |
31 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Wyaconda River Above Canton
|
13cfs |
South Fabius River Near Taylor
|
12cfs |
North River At Palmyra
|
21cfs |
Bear Creek Near Marcelline
|
5cfs |
Salt River Near Shelbina
|
30cfs |
Fox River At Wayland
|
8cfs |