Dd No A-6 (Tri-Creek) Reservoir Report

Last Updated: December 13, 2025

Dd No A-6 (Tri-Creek) is a flood risk reduction structure located in Neodesha, Kansas, owned by the local government and regulated by the Kansas Department of Agriculture.


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Summary

The dam is situated on Chetopa Creek-TR and serves the primary purpose of flood risk reduction. With a dam height of 20 feet and a storage capacity of 723.04 acre-feet, Dd No A-6 plays a crucial role in mitigating potential flood hazards in the area.

Constructed with an earth core and buttress design, the dam spans a length of 2420 feet and has a spillway width of 60 feet. Despite its low hazard potential, Dd No A-6 is classified as having a moderate risk level (3) and is currently in a not rated condition. The dam does not have a designated emergency action plan in place and lacks updated inundation maps, presenting opportunities for improvement in risk management and emergency preparedness measures. Climate and water resource enthusiasts may find Dd No A-6's location and design details intriguing, as it represents a vital infrastructure piece in the local flood risk reduction efforts.

Dam Length

2420

Dam Height

20

River Or Stream

CHETOPA CREEK-TR

Primary Dam Type

Earth

Surface Area

22.47

Drainage Area

1.41

Nid Storage

723.04

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

20
       
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.