Collop Dam Reservoir Report
Nearby: Taylor Dam Crandall Dam
Last Updated: December 7, 2025
Collop Dam, located in Adair County, Missouri, is a privately owned structure designed by the USDA NRCS with a primary purpose of providing fire protection, stock, or serving as a small fish pond.
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Summary
Completed in 2002, this earth dam stands at a height of 30 feet and has a length of 400 feet. It has a normal storage capacity of 18 acre-feet and a maximum storage of 24 acre-feet, serving as a vital water resource for the surrounding area.
Situated on the TR-North Fork Salt River, Collop Dam plays a crucial role in managing water resources in the region while also mitigating potential risks associated with low hazard potential. Despite not being regulated by the state, the dam's construction and design by the Natural Resources Conservation Service attest to its structural integrity and operational efficiency. With a moderate risk assessment rating, Collop Dam stands as a reliable infrastructure for water management and agricultural needs in the area.
The dam's uncontrolled spillway and outlet gates, along with its stone core and soil foundation, highlight its functionality and adaptability for various purposes. With a surface area of 8 acres and a drainage area of 243.2 square miles, Collop Dam serves as a vital component in the region's water infrastructure. Its low hazard potential and moderate risk assessment emphasize its importance in maintaining water resources while ensuring the safety and well-being of the surrounding communities.
Year Completed |
2002 |
Dam Length |
400 |
Dam Height |
30 |
River Or Stream |
TR-NORTH FORK SALT RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
28 |
Drainage Area |
243.2 |
Nid Storage |
24 |
Structural Height |
29 |
Outlet Gates |
Uncontrolled |
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.
Collop Dam