Grindstone-Lost-Muddy Watershed Dam A-23 Reservoir Report
Last Updated: December 6, 2025
Located in DeKalb, Missouri, the Grindstone-Lost-Muddy Watershed Dam A-23, also known as Str A23, was completed in 1975 with the primary purpose of grade stabilization.
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Summary
Designed by USDA NRCS, this earth dam stands at a height of 20 feet and stretches 530 feet in length. With a storage capacity of 114 acre-feet and a normal storage of 37 acre-feet, this structure plays a crucial role in managing water resources in the area.
Situated on TR-GRINDSTONE CREEK, this dam is under the ownership of the local government and the jurisdiction of the state of Missouri. With a low hazard potential and a moderate risk assessment rating, the dam has not been rated for its condition assessment. Despite not being regulated by the state, the structure serves as a key component for water management in the region. As a part of the Grade Stabilization program, this dam contributes to the overall sustainability of the watershed and helps mitigate the impact of climate change on the surrounding environment.
Although not inspected recently, the Grindstone-Lost-Muddy Watershed Dam A-23 remains an essential infrastructure for water resource management in DeKalb, Missouri. With a moderate risk assessment rating and a low hazard potential, this earth dam continues to play a significant role in ensuring the stability of the local watershed. As a part of the larger conservation efforts in the area, this structure stands as a testament to the importance of sustainable water resource management amidst changing climatic conditions.
Year Completed |
1975 |
Dam Length |
530 |
Dam Height |
20 |
River Or Stream |
TR-GRINDSTONE CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
20 |
Drainage Area |
12.8 |
Nid Storage |
114 |
Structural Height |
20 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Grindstone-Lost-Muddy Watershed Dam A-23