Hayden Lake Dam Reservoir Report
Last Updated: January 12, 2026
Hayden Lake Dam, located in Gentry, Missouri, was completed in 1977 and serves as a key structure for recreational purposes and water supply.
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Summary
This private dam, standing at 25 feet with a core type of buttress, overlooks the TR-Middle Fork Grand River and has a storage capacity of 40 acre-feet. While it has not been rated for its condition, the dam's hazard potential is considered low, providing a sense of security for the surrounding area.
The dam's design, with an earth structure and unknown foundation, highlights its commitment to maintaining water resources and supporting outdoor activities. Despite not being regulated or inspected by state agencies, Hayden Lake Dam stands as a testament to private ownership and the responsible management of water infrastructure. With its modest surface area of 3 acres and drainage area of 25 acres, the dam contributes to the local ecosystem while meeting the recreational and water supply needs of the community.
In the face of climate change and increasing water scarcity, Hayden Lake Dam stands as a vital resource for Worth County, Missouri. As climate enthusiasts and water resource advocates, it is crucial to recognize the importance of structures like Hayden Lake Dam in preserving water quality, supporting biodiversity, and providing essential recreational opportunities for local residents. By understanding and celebrating the role of dams like Hayden Lake in our ecosystem, we can work towards a sustainable future for water management and climate resilience.
Year Completed |
1977 |
Dam Height |
25 |
River Or Stream |
TR-MIDDLE FORK GRAND RIVER |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
25 |
Nid Storage |
40 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
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.
Hayden Lake Dam