Simmons Lake Dam Reservoir Report
Nearby: Hunnewell Lake Dam Smith Lake Dam
Last Updated: December 16, 2025
Simmons Lake Dam, located in Shelby County, Missouri, was completed in 1954 and serves multiple purposes including fire protection, stock maintenance, and small fish pond management.
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Summary
The dam is privately owned and stands at a height of 25 feet with a storage capacity of 54 acre-feet. The structure is classified as an earth dam with a buttress core type, and its hazard potential is rated as low.
Despite being state-regulated, Simmons Lake Dam is not subject to regular inspections or enforcement measures. The dam's condition is currently listed as "Not Rated," and there is no Emergency Action Plan in place. While the dam does not pose an immediate threat, its limited oversight and lack of recent assessments raise concerns over its long-term safety and resilience in the face of changing climate conditions. Water resource and climate enthusiasts may find Simmons Lake Dam an intriguing case study for examining the intersection of private ownership, regulatory oversight, and the need for proactive risk management in the face of potential hazards.
Year Completed |
1954 |
Dam Height |
25 |
River Or Stream |
TR TO BROWNE BRANCH |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
20 |
Nid Storage |
54 |
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.
Simmons Lake Dam