State Fishing Lake Reservoir Report

Last Updated: December 5, 2025

State Fishing Lake, also known as Butler County State Lake, is a picturesque water resource located in Winfield, Kansas.


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Summary

Managed by the Kansas Department of Agriculture, this state-regulated lake offers a serene retreat for fishing enthusiasts and climate lovers alike. Built in 1955, the lake boasts a unique buttress dam design with a height of 33 feet and a storage capacity of 1,342 acre-feet.

Situated along the North Branch Rock Creek, State Fishing Lake covers a surface area of 1270 feet and has a maximum discharge of 3,500 cubic feet per second. With a low hazard potential and a condition assessment of "Not Rated," the lake provides a safe and enjoyable environment for outdoor recreational activities. Whether it's fishing, bird watching, or simply enjoying the natural beauty of the surrounding area, State Fishing Lake offers a diverse range of experiences for visitors to enjoy.

As a state-owned water resource, State Fishing Lake plays a crucial role in water conservation efforts in Butler County, Kansas. With its tranquil setting and abundant wildlife, the lake serves as a valuable ecosystem for both aquatic and terrestrial species. Whether you're a water resource enthusiast or a climate advocate, State Fishing Lake is a must-visit destination for anyone looking to connect with nature and appreciate the beauty of the great outdoors.

Year Completed

1955

Dam Length

1270

Dam Height

33

River Or Stream

NORTH BRANCH ROCK CREEK

Hydraulic Height

30

Nid Storage

1342

Structural Height

33

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

33
       
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.