Frd No 6 Reservoir Report

Last Updated: December 5, 2025

Frd No 6, also known as the Little Walnut Hickory Watershed Dam, is a vital flood risk reduction structure located in Leon, Butler County, Kansas.


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Summary

Built in 1967 by the USDA NRCS, this earth dam stands at 27 feet tall and spans 920 feet in length. With a storage capacity of 250 acre-feet, it serves as a crucial component in managing floodwaters from the NO BR Little Walnut River-TR.

Managed by the Kansas Department of Agriculture, Frd No 6 is state-regulated and regularly inspected to ensure its structural integrity. Despite its low hazard potential, the dam is rated as having a moderate risk due to its age and the surrounding conditions. Emergency preparedness measures are in place, although the dam's current condition assessment is not rated. The dam's purpose of flood risk reduction underscores its importance in protecting the local community and environment from potential water-related disasters.

Overall, Frd No 6 plays a significant role in safeguarding the residents of Butler County, Kansas, from the impacts of flooding. With its effective design and operational oversight, this dam stands as a testament to the collaborative efforts of local government agencies and the USDA NRCS in ensuring the resilience of water resources and climate adaptation in the region.

Year Completed

1967

Dam Length

920

Dam Height

27

River Or Stream

NO BR LITTLE WALNUT RIVER-TR

Primary Dam Type

Earth

Surface Area

7.61

Hydraulic Height

23

Nid Storage

250

Structural Height

27

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

27
       
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.