Panther Creek Watershed Dam Lt- 21 Reservoir Report
Last Updated: December 11, 2025
Panther Creek Watershed Dam Lt- 21, also known as Land Treatment Str Lt-21, is a privately owned earth dam located in Mt.
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Summary
Moriah, Missouri. Built in 1975 by the USDA NRCS, this dam serves the primary purpose of grade stabilization along the TR-Panther Creek, covering a drainage area of 147.2 acres. Standing at a height of 27 feet, with a hydraulic height of 25 feet, this dam plays a crucial role in controlling the flow of water and preventing erosion in the surrounding area.
With a low hazard potential and a moderate risk assessment of 3, Panther Creek Watershed Dam Lt- 21 is an essential infrastructure for water resource and climate enthusiasts. The dam has a maximum storage capacity of 23 acre-feet and a normal storage capacity of 15 acre-feet, providing flood protection and water supply benefits to the region. Despite not being state regulated or inspected, the dam's structural integrity and functionality are maintained by its private owners, ensuring the safety and reliability of its operations.
Although not currently rated for condition assessment, Panther Creek Watershed Dam Lt- 21 remains a critical asset in the local watershed, contributing to the overall management of water resources in the area. Its uncontrolled spillway, stone core, and soil foundation demonstrate a well-designed structure that effectively serves its intended purpose. As a part of the larger conservation efforts in the region, this dam highlights the importance of sustainable water management practices and the role of private ownership in ensuring the resilience of water infrastructure in the face of changing climate conditions.
Year Completed |
1975 |
Dam Length |
250 |
Dam Height |
25 |
River Or Stream |
TR-PANTHER CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
25 |
Drainage Area |
147.2 |
Nid Storage |
23 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Fork Big Creek Near Bethany
|
4cfs |
Thompson River At Davis City
|
22cfs |
Thompson River At Trenton
|
143cfs |
Grand River Near Gallatin
|
76cfs |
Medicine Creek Near Laredo
|
20cfs |
Grand River At Chillicothe
|
361cfs |
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.
Panther Creek Watershed Dam Lt- 21