Grassy Creek Watershed Dam G- 44 Reservoir Report
Last Updated: December 5, 2025
Grassy Creek Watershed Dam G-44, located in Lewis, Missouri, is a vital structure designed by the USDA NRCS for flood risk reduction along the Grassy Creek.
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Summary
Completed in 1990, this earth dam stands at a height of 29 feet and spans 470 feet in length, with a maximum storage capacity of 62 acre-feet. Its primary purpose extends to fire protection, stock, fish and wildlife pond, and of course, flood risk reduction.
With a low hazard potential and a moderate risk assessment rating, Grassy Creek Watershed Dam G-44 serves as a crucial element in the region's water resource management efforts. Although not currently regulated by the state, this structure plays a significant role in protecting the surrounding area from potential flooding events. Its uncontrolled spillway and lack of outlet gates highlight the need for regular inspections and maintenance to ensure its continued effectiveness in mitigating flood risks.
Managed by the local government, this dam exemplifies the collaborative efforts between various agencies in safeguarding the community and its natural environment. As water resource and climate enthusiasts, understanding and supporting the maintenance of structures like Grassy Creek Watershed Dam G-44 is essential in promoting resilience and sustainability in the face of changing climate patterns and increasing water-related challenges.
Year Completed |
1990 |
Dam Length |
470 |
Dam Height |
26 |
River Or Stream |
GRASSY CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
26 |
Drainage Area |
358.4 |
Nid Storage |
62 |
Structural Height |
29 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
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- 44