Petersmeyer's Lower Lake Dam Reservoir Report
Last Updated: December 17, 2025
Located in Warren, Missouri, Petersmeyer's Lower Lake Dam is a privately owned structure with a primary purpose of recreation.
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Summary
Built in 1952, this earth dam stands at a height of 28 feet and has a storage capacity of 75 acre-feet. The dam overlooks the TR Big Creek and serves as a popular spot for water resource and climate enthusiasts to enjoy outdoor activities in a scenic setting.
Despite its recreational value, Petersmeyer's Lower Lake Dam poses a high hazard potential and has not been rated for its condition. With no state regulation or inspection in place, there are concerns about the safety and maintenance of this dam. The lack of emergency action plan and risk assessment further highlight the need for proper management and oversight to ensure the safety of the surrounding area and its inhabitants.
As the Kansas City District oversees the dam, there is a call for increased monitoring and maintenance to address the high hazard potential. This unique structure presents an opportunity for water resource and climate enthusiasts to advocate for improved safety measures and preservation efforts to protect this valuable recreational resource for future generations.
Year Completed |
1952 |
Dam Height |
28 |
River Or Stream |
TR BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
75 |
Nid Storage |
75 |
Structural Height |
28 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cuivre River Near Troy
|
42cfs |
Missouri River At Hermann
|
28400cfs |
Dardenne Creek At Ofallon
|
14cfs |
Bourbeuse River At Union
|
71cfs |
Dardenne Creek At Old Town St. Peters
|
8cfs |
Bonhomme Creek Near Ellisville
|
0cfs |
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.
Petersmeyer's Lower Lake Dam