Sims Lake Dam Reservoir Report
Nearby: Hanak Lake Dam Fashing
Last Updated: December 18, 2025
Sims Lake Dam, located in Audrain County, Missouri, was completed in 1975 and serves primarily for irrigation purposes.
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Summary
This private earth dam, with a height of 17 feet and a length of 1830 feet, holds a storage capacity of 186 acre-feet. The dam is situated on the TR-Long Branch river/stream, under the jurisdiction of the St. Louis District of the US Army Corps of Engineers.
Despite being classified as having a low hazard potential, Sims Lake Dam is considered to have a moderate risk level, with a moderate (3) rating. The dam features an uncontrolled spillway with a width of 20 feet and does not have any outlet gates. While the condition assessment is listed as "Not Rated," the dam has not been subject to recent inspections or evaluations. Overall, Sims Lake Dam plays a crucial role in supporting irrigation activities in the area, with a focus on managing water resources effectively.
Year Completed |
1975 |
Dam Length |
1830 |
Dam Height |
17 |
River Or Stream |
TR-LONG BRANCH |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
17 |
Drainage Area |
230 |
Nid Storage |
186 |
Structural Height |
17 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
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.
Sims Lake Dam