Grindstone-Lost-Muddy Watershed Dam C- 22 Reservoir Report
Last Updated: December 6, 2025
Grindstone-Lost-Muddy Watershed Dam C-22, located in Gentry County, Missouri, was completed in 1975 by the USDA NRCS with the primary purpose of grade stabilization along TR-LOST CREEK.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam stands at a height of 22 feet and has a structural height of 24 feet, with a length of 500 feet and a storage capacity of 84 acre-feet. The dam is primarily made of stone core and soil foundation, serving to control the flow of water and prevent erosion in the area.
Despite being unregulated by the state, Dam C-22 plays a crucial role in managing water resources and reducing the risk of flooding in the region. With a low hazard potential and moderate risk assessment, the dam provides essential grade stabilization and storage capacity for the surrounding drainage area of 85 square miles. While it lacks a formal emergency action plan and condition assessment, the dam remains a key infrastructure for water resource management in the Grindstone-Lost-Muddy Watershed.
Overall, Grindstone-Lost-Muddy Watershed Dam C-22 is a vital piece of infrastructure designed to protect the local environment and community from the impacts of water flow and erosion. As a locally owned and operated structure, its significance lies in its contribution to grade stabilization and water storage in an area prone to natural disasters. With a focus on sustainability and risk management, Dam C-22 stands as a testament to the importance of thoughtful water resource management in the face of changing climate conditions.
Year Completed |
1975 |
Dam Length |
500 |
Dam Height |
22 |
River Or Stream |
TR-LOST CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
22 |
Drainage Area |
85 |
Nid Storage |
84 |
Structural Height |
24 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
One Hundred And Two River At Maryville
|
10cfs |
Platte River Near Agency
|
78cfs |
East Fork Big Creek Near Bethany
|
4cfs |
Missouri River At St. Joseph
|
23700cfs |
Grand River Near Gallatin
|
63cfs |
Nodaway River Near Graham
|
134cfs |
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- 22