Gonyea Lake Dam Reservoir Report
Last Updated: December 19, 2025
Gonyea Lake Dam, located in Randolph County, Missouri, is a private-owned structure that spans over the TR-MONITEAU CREEK.
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Summary
The dam, primarily constructed for purposes other than flood control or water supply, stands at a height of 30 feet with a storage capacity of 80 acre-feet. Despite being low-hazard and not currently regulated by the state, the dam's condition assessment remains unrated, indicating a lack of recent inspection or evaluation.
Surrounded by a surface area of 5 acres and a drainage area of 30 square miles, Gonyea Lake Dam serves as a vital component of the local landscape. The dam's construction details reveal it to be an earth dam with a buttress core type and an unknown foundation. With no designated spillway and a spillway width of zero, the dam's risk potential is deemed low, although its emergency action plan and risk management measures remain undisclosed.
Amidst the tranquil waters of Gonyea Lake, this unassuming dam raises questions about its operational and safety protocols. As water resource and climate enthusiasts delve into the intricacies of its design and management, the mysteries surrounding Gonyea Lake Dam invite further exploration and evaluation to ensure its long-term sustainability and resilience in the face of evolving environmental challenges.
Dam Height |
30 |
River Or Stream |
TR-MONITEAU CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
30 |
Nid Storage |
80 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
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.
Gonyea Lake Dam