Tarpening Lake Dam Reservoir Report
Last Updated: December 18, 2025
Tarpening Lake Dam, located in Keytesville, Missouri, was completed in 1976 for the primary purpose of recreation.
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Summary
This privately owned earthen dam stands at a height of 24 feet and has a storage capacity of 90 acre-feet, with a normal storage level of 82 acre-feet. The dam sits on TR-Clarks Creek, within the Rock Island District, and covers a surface area of 7 acres with a drainage area of 13 acres.
Despite its recreational focus, Tarpening Lake Dam is classified as a high hazard potential structure, although its condition assessment is currently listed as "Not Rated." The dam has not been inspected in recent years and lacks Emergency Action Plan (EAP) preparations. The dam's risk assessment, risk management measures, and other relevant details are also currently unavailable. With its intriguing history and potential risks, Tarpening Lake Dam offers a unique subject of interest for water resource and climate enthusiasts looking to explore the complexities of dam management and safety in the state of Missouri.
Year Completed |
1976 |
Dam Height |
24 |
River Or Stream |
TR-CLARKS CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
13 |
Nid Storage |
90 |
Structural Height |
24 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
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.
Tarpening Lake Dam