Cumminghams Lake Dam Reservoir Report
Nearby: Seltsam Lake Dam Linn Lake Dam
Last Updated: December 18, 2025
Cumminghams Lake Dam, located in Boone County, Missouri, is a private earth dam completed in 1977 with a primary purpose of serving as a Fish and Wildlife Pond.
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Summary
The dam stands at a height of 23 feet and has a length of 500 feet, providing a storage capacity of 99 acre-feet. With a low hazard potential and moderate risk assessment, this dam is classified as having a low risk to downstream communities, making it an essential structure for fire protection, stock, and recreation in the area.
Situated on the TR-Hinkson Creek, Cumminghams Lake Dam is not state-regulated and does not fall under federal jurisdiction. Despite the lack of state inspection and enforcement, the dam remains in good condition with a structural height of 23 feet and a hydraulic height matching its dam height. The spillway, with a width of 20 feet, is uncontrolled, and the dam's associated structures include stone cores and soil foundations. Despite being non-federally owned, the dam plays a vital role in managing water resources and supporting wildlife habitats in the region.
Overall, Cumminghams Lake Dam serves as a crucial infrastructure for water resource management and wildlife conservation in Columbia, Missouri. With a storage capacity of 99 acre-feet and a surface area of 2 acres, the dam provides essential support for fish and wildlife while offering recreational opportunities for the local community. Despite its private ownership and limited regulation, the dam's low hazard potential and moderate risk assessment highlight its importance in maintaining the ecological balance of the surrounding area.
Year Completed |
1977 |
Dam Length |
500 |
Dam Height |
23 |
River Or Stream |
TR-HINKSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
23 |
Drainage Area |
102.4 |
Nid Storage |
99 |
Structural Height |
23 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
Seasonal Comparison
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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.
Cumminghams Lake Dam