Dunn Lake Dam Reservoir Report
Nearby: Broussard Lake Dam Boulanger Lake Dam
Last Updated: December 18, 2025
Dunn Lake Dam, located in Warren, Missouri, stands as a testament to both the recreational and water supply capabilities of dams.
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Summary
Completed in 1970, this earth dam with a buttress core stretches 490 feet in length and reaches a height of 38 feet, offering a storage capacity of 115 acre-feet. The dam is a vital component in managing the 10.5-acre surface area and 70-acre drainage area, providing both recreation opportunities and essential water supply for the region.
Under the jurisdiction of the DAM AND RESERVOIR SAFETY PROG, Dunn Lake Dam is regularly inspected and maintained, with the last assessment in December 2007 indicating a satisfactory condition. Despite being classified as having a high hazard potential, the risk management measures in place ensure that any potential issues are managed effectively. With a spillway width of 25 feet and a maximum discharge capacity of 200 cubic feet per second, the dam is well-equipped to handle any excess water and maintain the safety of the surrounding areas.
For water resource and climate enthusiasts, Dunn Lake Dam serves as a fascinating example of the intersection between infrastructure, environmental management, and public safety. With its blend of recreational and water supply purposes, the dam underscores the crucial role that such structures play in sustaining communities and ecosystems. As ongoing assessments and risk management efforts continue to ensure the dam's integrity, it stands as a testament to the ingenuity and foresight of those who designed and maintain it.
Year Completed |
1970 |
Dam Length |
490 |
Dam Height |
38 |
River Or Stream |
TR HICKORY LICK CREEK |
Primary Dam Type |
Earth |
Surface Area |
10.5 |
Drainage Area |
70 |
Nid Storage |
115 |
Structural Height |
38 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cuivre River Near Troy
|
33cfs |
Missouri River At Hermann
|
29400cfs |
Dardenne Creek At Ofallon
|
6cfs |
Dardenne Creek At Old Town St. Peters
|
11cfs |
Bonhomme Creek Near Ellisville
|
0cfs |
Bourbeuse River At Union
|
73cfs |
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.
Dunn Lake Dam