Grindstone-Lost-Muddy Watershed Dam D-23 Reservoir Report
Last Updated: December 5, 2025
Grindstone-Lost-Muddy Watershed Dam D-23, located in DeKalb, Missouri, is a key structure managed by the local government for grade stabilization along the TR-N.FORK LOST CREEK.
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Summary
Built in 1975 by the USDA NRCS, this earth dam stands at 30 feet tall and stretches 600 feet in length. With a storage capacity of 223 acre-feet and a drainage area of 350 square miles, the dam plays a crucial role in managing water resources in the region.
Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level. The spillway, with a width of 50 feet, is uncontrolled, allowing for controlled release of water during high flow events. The dam has not been rated for its condition assessment, indicating the need for further evaluation to ensure its long-term functionality. The primary purpose of the dam is grade stabilization, with a focus on protecting surrounding areas from erosion and sediment buildup.
In the event of an emergency, it is crucial for the local government to have an Emergency Action Plan (EAP) in place. While details about the EAP for Grindstone-Lost-Muddy Watershed Dam D-23 are not available, it is essential for stakeholders to ensure that proper measures are in place to mitigate any potential risks. With its strategic location and role in managing water resources, this dam serves as a vital infrastructure for the community and underscores the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1975 |
Dam Length |
600 |
Dam Height |
30 |
River Or Stream |
TR-N.FORK LOST CREEK |
Primary Dam Type |
Earth |
Surface Area |
24 |
Hydraulic Height |
30 |
Drainage Area |
350 |
Nid Storage |
223 |
Structural Height |
30 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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 D-23