Little Indian Creek Dam Reservoir Report

Last Updated: December 5, 2025

Little Indian Creek Dam, located in Richwoods, Missouri, is a privately owned structure completed in 1972 for tailings management.


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Summary

Standing at a height of 58 feet with a length of 1680 feet, this dam serves the purpose of controlling the flow of Little Indian Creek and provides a storage capacity of 1280 acre-feet. The dam is classified as a rockfill type with a buttress core, and has a spillway width of 25 feet.

Despite its satisfactory condition assessment in 2007, the Little Indian Creek Dam poses a high hazard potential and undergoes inspections every two years. The dam's emergency action plan was last revised in December 2017, highlighting the importance of preparedness for potential risks. With a moderate risk assessment rating, the dam is regulated and inspected by the Dam and Reservoir Safety Program in Missouri, showcasing the commitment to ensuring the safety and integrity of this essential water resource infrastructure.

Year Completed

1972

Dam Length

1680

Dam Height

58

River Or Stream

TR-LITTLE INDIAN CREEK

Surface Area

60

Drainage Area

400

Nid Storage

1280

Structural Height

58

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

58
       
Seasonal Comparison

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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.