Grindstone-Lost-Muddy Watershed Dam C-63 Reservoir Report
Last Updated: December 5, 2025
Grindstone-Lost-Muddy Watershed Dam C-63, located in Gentry, Missouri, was completed in 1971 by the USDA NRCS for the primary purpose of grade stabilization along the TR-LOST CREEK.
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Summary
This earth dam, with a height of 30 feet and a length of 540 feet, serves to control water flow and prevent erosion in the area. The dam has a maximum storage capacity of 146 acre-feet and a normal storage capacity of 77 acre-feet, covering a surface area of 16 acres and draining a 320-acre watershed.
With a low hazard potential and a moderate risk assessment rating, Grindstone-Lost-Muddy Watershed Dam C-63 is a vital infrastructure for water resource management in the region. Despite not being regulated by the state, the dam plays a crucial role in mitigating flood risks and ensuring water availability for agricultural and environmental purposes. As a Grade Stabilization structure, it is designed to withstand hydraulic pressures and manage peak discharges of up to 252 cubic feet per second, contributing to the overall resilience of the watershed.
Managed by the local government and with no current condition assessment rating, Grindstone-Lost-Muddy Watershed Dam C-63 stands as a testament to sustainable water resource management practices. Its uncontrolled spillway and stone core construction highlight the importance of maintaining and monitoring such critical infrastructure to adapt to changing climate patterns and water resource demands. As climate enthusiasts and water resource advocates, understanding and supporting the maintenance of structures like Dam C-63 is crucial for ensuring a resilient and sustainable water future.
Year Completed |
1971 |
Dam Length |
540 |
Dam Height |
28 |
River Or Stream |
TR-LOST CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
28 |
Drainage Area |
320 |
Nid Storage |
146 |
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 C-63