Selken Lake Reservoir Report

Last Updated: December 6, 2025

Selken Lake, located in Pettis County, Missouri, is a private irrigation reservoir that was completed in 1979.


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Summary

The earth dam stands at 25 feet high and stretches 1046 feet in length, providing a storage capacity of 210 acre-feet. The lake is fed by TR-Flat Creek and serves the primary purpose of irrigation for the surrounding area.

With a low hazard potential and moderate risk assessment rating, Selken Lake is deemed to be a relatively safe structure. The spillway, though uncontrolled, has a width of 25 feet to manage potential overflow. The condition of the dam is currently not rated, but regular inspections and risk management measures are in place to ensure the safety and integrity of the reservoir.

Although not under state jurisdiction or regulation, Selken Lake plays a crucial role in water resource management in the region. Enthusiasts interested in the intersection of water resources and climate change will find Selken Lake to be an intriguing case study of a privately owned reservoir contributing to agricultural sustainability in the area.

Year Completed

1979

Dam Length

1046

Dam Height

25

River Or Stream

TR-FLAT CREEK

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

24

Drainage Area

210

Nid Storage

210

Structural Height

26

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

26
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.