Gardner Lake Dam Reservoir Report

Last Updated: December 6, 2025

Gardner Lake Dam, also known as Johnson Co.


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Summary

State Lake Dam, is a captivating structure located in DeSoto, Kansas, along the Kill Creek. Built in 1940 by the Forestry Fish and Game department, this local government-owned dam serves primarily as a water supply source for the surrounding area. Standing at a height of 58 feet and with a hydraulic height of 58 feet, the dam is an impressive sight with a length of 1550 feet and a storage capacity of 3618 acre-feet.

Despite its fair condition assessment and high hazard potential, Gardner Lake Dam plays a crucial role in providing water supply and recreational opportunities for the community. With a surface area of 130 acres and a drainage area of 5.34 square miles, the dam contributes to the conservation and management of water resources in the region. The dam's design as a buttress structure and its inspection and regulatory oversight by the Kansas Department of Agriculture ensure its continued safe operation.

Located in Johnson County, Kansas, Gardner Lake Dam is a vital piece of infrastructure that not only supports water supply needs but also offers recreational activities for residents. With its historical significance dating back to the 1940s, the dam stands as a testament to the importance of managing water resources in a sustainable and responsible manner. As climate change continues to impact water availability, dams like Gardner Lake play a crucial role in ensuring the resilience of communities in the face of evolving environmental challenges.

Year Completed

1940

Dam Length

1550

Dam Height

58

River Or Stream

KILL CREEK

Primary Dam Type

Other

Surface Area

130

Hydraulic Height

58

Drainage Area

5.34

Nid Storage

3618

Structural Height

61

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

61
       
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.