Grassy Creek Watershed Dam G- 52 Reservoir Report
Last Updated: December 5, 2025
Grassy Creek Watershed Dam G-52 is a key structure in Lewis, Missouri, designed by the USDA NRCS to serve as a flood risk reduction measure for the surrounding area.
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Summary
Completed in 1996, this earth dam stands at a height of 27 feet and stretches 580 feet in length, with a storage capacity of 173 acre-feet. Situated on Grassy Creek, this dam plays a crucial role in managing water flow and protecting against potential flooding events in the region.
Owned by the local government, Grassy Creek Watershed Dam G-52 is not regulated by the state and has a low hazard potential. Despite not being rated for its condition assessment, this dam continues to serve its primary purpose effectively. With a moderate risk assessment score of 3, efforts to ensure the safety and functionality of this structure are ongoing. As a part of the broader water resource management strategy in the area, this dam contributes to the protection of the environment and supports various purposes such as fire protection, wildlife conservation, and flood risk reduction.
Grassy Creek Watershed Dam G-52 represents a vital piece of infrastructure in Lewis, Missouri, designed to mitigate flood risks and support the surrounding ecosystem. With a focus on fire protection, stock maintenance, and wildlife conservation, this earth dam stands as a testament to effective water resource management. As climate enthusiasts and water resource advocates continue to monitor and maintain this structure, its role in safeguarding the community from potential flooding events remains paramount.
Year Completed |
1996 |
Dam Length |
580 |
Dam Height |
27 |
River Or Stream |
GRASSY CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
27 |
Drainage Area |
371.2 |
Nid Storage |
173 |
Structural Height |
39 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wyaconda River Above Canton
|
13cfs |
South Fabius River Near Taylor
|
12cfs |
North River At Palmyra
|
21cfs |
Salt River Near Shelbina
|
30cfs |
Bear Creek Near Marcelline
|
5cfs |
Fox River At Wayland
|
8cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Grassy Creek Watershed Dam G- 52