Frd No 27 Reservoir Report

Last Updated: December 5, 2025

Frd No 27, also known as Upper Walnut WS Joint District No 33, is a flood risk reduction structure located in Butler County, Kansas.


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Summary

Built in 1977 by the USDA NRCS, this earth dam stands at a height of 36 feet with a length of 2550 feet, providing protection along the Upper Branch Harrison Creek. With a storage capacity of 1871 acre-feet and a surface area of 40.57 acres, Frd No 27 plays a crucial role in managing floodwaters and safeguarding the surrounding area from potential risks.

The dam is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its structural integrity. Despite being categorized with a low hazard potential and a moderate risk assessment, the condition of Frd No 27 has not been rated. With a spillway width of 100 feet and no outlet gates, the dam is designed to handle uncontrolled releases during peak flow events, highlighting its importance in flood control efforts within the region.

As a key infrastructure for flood risk reduction in Butler County, Frd No 27 serves as a vital asset in protecting the community from potential inundation. With its strategic location and design, this earth dam stands as a testament to the collaborative efforts between local government agencies and the USDA NRCS to mitigate the impacts of flooding and safeguard water resources in the region.

Year Completed

1977

Dam Length

2550

Dam Height

36

River Or Stream

UPPER BRANCH HARRISON CREEK

Primary Dam Type

Earth

Surface Area

40.57

Hydraulic Height

33

Drainage Area

5.55

Nid Storage

1871

Structural Height

36

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

36
       
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.