Isley Lake Dam Reservoir Report
Nearby: Woodridge Lake Dam Dogwood Lake Dam
Last Updated: December 16, 2025
Isley Lake Dam, also known as Stark Lake Dam, is a privately owned structure located in Warren, Missouri.
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Summary
Completed in 1984, this earth dam stands at a height of 65 feet and has a length of 400 feet, with a capacity to store 349 acre-feet of water. The primary purpose of the dam is for recreation, offering a surface area of 8 acres for outdoor enthusiasts to enjoy.
Despite its satisfactory condition assessment in 2007, Isley Lake Dam has a high hazard potential, with a moderate risk level. The dam is regulated by the Dam and Reservoir Safety Program in Missouri, with regular state inspections and enforcement measures in place. In the event of an emergency, the dam has an established Emergency Action Plan (EAP), although the last review of the plan was in 2011.
Water resource and climate enthusiasts will find Isley Lake Dam a captivating structure due to its significant role in providing recreational opportunities in the region, its high hazard potential, and the regulatory measures in place to ensure public safety. With its picturesque location and important function in managing water resources, Isley Lake Dam serves as a reminder of the delicate balance between human activity and environmental stewardship.
Year Completed |
1984 |
Dam Length |
400 |
Dam Height |
65 |
River Or Stream |
UNNAMED TRIB TO DRY FORK |
Surface Area |
8 |
Drainage Area |
96 |
Nid Storage |
349 |
Structural Height |
64 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
65 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River At Hermann
|
27400cfs |
Cuivre River Near Troy
|
35cfs |
Bourbeuse River At Union
|
73cfs |
Dardenne Creek At Ofallon
|
2cfs |
Dardenne Creek At Old Town St. Peters
|
6cfs |
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.
Isley Lake Dam