Crystal Lake Dam Reservoir Report
Nearby: Indian Camp Lake Dam Thiele Lake Dam
Last Updated: December 17, 2025
Crystal Lake Dam, located in Chain of Rocks, Missouri, is a privately owned structure with a primary purpose that falls under the category of "Other." Built in 1970, this Earth dam with a buttress core stands at a height of 20 feet and has a storage capacity of 107 acre-feet.
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Summary
With a normal storage capacity of 67 acre-feet and a surface area of 10 acres, the dam serves the purpose of regulating the flow of TR-Big Creek.
Despite being privately owned, Crystal Lake Dam has a high hazard potential and is currently not rated in terms of condition assessment. The dam has not undergone recent inspections, and its emergency action plan status, risk assessment, and management measures are all listed as unknown. With no state regulation or enforcement in place, the dam's safety and maintenance fall solely on the private owner, raising concerns for potential risks and hazards in the event of a failure.
Given the lack of oversight and maintenance information available for Crystal Lake Dam, water resource and climate enthusiasts may find interest in further investigating the safety and management of this structure. The dam's location in Lincoln County, Missouri, and its high hazard potential highlight the importance of monitoring and assessing the risks associated with privately owned dams to ensure the safety of surrounding communities and natural resources.
Year Completed |
1970 |
Dam Height |
20 |
River Or Stream |
TR-BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Drainage Area |
200 |
Nid Storage |
107 |
Structural Height |
20 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
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.
Crystal Lake Dam