Lyon County State Fishing Lake Reservoir Report

Last Updated: December 5, 2025

Lyon County State Fishing Lake, also known as Lyon County State Lake Dam, is a captivating water resource situated in Lyon County, Kansas.


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Summary

This state-regulated lake, designed by Paulette and Wilson, stands as a testament to the state's commitment to water management and conservation. With a buttress core type and a structural height of 55 feet, this dam, completed in 1933, serves a primary purpose of providing recreational and environmental benefits to the surrounding community.

Covering an area of 2250 feet in length, Lyon County State Fishing Lake boasts a maximum storage capacity of 3105 acre-feet, with a normal storage level of 1890 acre-feet. The dam's low hazard potential and not yet rated condition assessment indicate its stable and secure structure. With the picturesque Duck Creek-Tr flowing nearby, this lake offers a tranquil setting for fishing, boating, and wildlife observation, attracting water resource and climate enthusiasts who appreciate the beauty and importance of well-managed aquatic ecosystems.

Managed by the Kansas Department of Agriculture, Lyon County State Fishing Lake plays a vital role in water regulation and conservation efforts in the region. Its strategic location and historical significance, combined with its low risk profile and regular state inspections, make it a valuable asset for both recreational enjoyment and environmental preservation. As climate change continues to impact water resources, this lake stands as a beacon of resilience and sustainability in the face of evolving environmental challenges.

Year Completed

1933

Dam Length

2250

Dam Height

55

River Or Stream

DUCK CREEK-TR

Hydraulic Height

45

Nid Storage

3105

Structural Height

55

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

55
       
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.