Oberlag Lake Dam Reservoir Report
Last Updated: December 17, 2025
Oberlag Lake Dam, located in Mexico, Missouri, was completed in 1975 primarily for irrigation purposes along the TR-DAVIS CREEK.
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Summary
This earth dam stands at 19 feet high and spans 1163 feet in length, with a storage capacity of 102 acre-feet. Despite being privately owned and not regulated by the state, the dam is classified as low hazard potential and has a moderate risk assessment rating of 3.
With a stone core and soil foundation, Oberlag Lake Dam features an uncontrolled spillway that is 10 feet wide. While the dam itself has not been rated for condition assessment, it is considered to be in a moderate risk management situation. Although there are currently no associated structures or outlet gates, the dam serves as a vital resource for irrigation in the region, supporting a drainage area of 85 square miles.
For water resource and climate enthusiasts, Oberlag Lake Dam offers a fascinating insight into the infrastructure that supports agricultural activities in Audrain County, Missouri. With its low hazard potential and moderate risk assessment, this privately owned earth dam plays a crucial role in water management and irrigation along TR-DAVIS CREEK, showcasing the importance of sustainable water resource management in the region.
Year Completed |
1975 |
Dam Length |
1163 |
Dam Height |
19 |
River Or Stream |
TR-DAVIS CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
19 |
Drainage Area |
85 |
Nid Storage |
102 |
Structural Height |
19 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
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.
Oberlag Lake Dam