Koepke Lake Dam North Reservoir Report
Nearby: Koepke Lake Dam South Miller Lake Dam
Last Updated: December 18, 2025
Located in Innsbrook, Missouri, the Koepke Lake Dam North is a private earth dam that serves multiple purposes including fire protection, stock maintenance, and small fish pond creation.
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Summary
Built in 1967, this dam stands at a height of 39 feet with a structural height of 40 feet and a length of 600 feet. It holds a maximum storage capacity of 152 acre-feet and covers a surface area of 10 acres, making it an essential water resource for the surrounding area.
Managed by the DAM AND RESERVOIR SAFETY PROG, the Koepke Lake Dam North is regulated, permitted, inspected, and enforced by the state of Missouri to ensure its safety and integrity. With a high hazard potential and a satisfactory condition assessment, this dam poses a moderate risk level (3) and follows an inspection frequency of 3 years. Although no emergency action plan (EAP) has been prepared, the dam meets safety guidelines and is equipped with an uncontrolled spillway system to manage overflow.
Enthusiasts of water resources and climate will find the Koepke Lake Dam North an intriguing structure, not only for its functional purposes but also for its role in maintaining the ecosystem of TR CHARRETTE CREEK. With a focus on safety and risk management, this dam serves as a vital component in the region's water infrastructure, highlighting the importance of maintaining and monitoring such structures in the face of changing climate conditions.
Year Completed |
1967 |
Dam Length |
600 |
Dam Height |
39 |
River Or Stream |
TR CHARRETTE CREEK |
Surface Area |
10 |
Drainage Area |
45 |
Nid Storage |
152 |
Structural Height |
40 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River At Hermann
|
29400cfs |
Bourbeuse River At Union
|
73cfs |
Cuivre River Near Troy
|
33cfs |
Dardenne Creek At Ofallon
|
6cfs |
Bonhomme Creek Near Ellisville
|
0cfs |
Dardenne Creek At Old Town St. Peters
|
11cfs |
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.
Koepke Lake Dam North