Garnett City Dam Reservoir Report

Last Updated: December 13, 2025

Garnett City Dam, also known as Lake Garnett, is a local government-owned structure located in Garnett, Kansas.


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Summary

Built in 1935 by the USA WPA, this earth-type dam stands at a height of 60 feet and serves primarily for recreational purposes, with a storage capacity of 920 acre-feet. The dam overlooks the Pottawatomie Creek-TR and covers a surface area of 45 acres, providing a picturesque setting for water resource and climate enthusiasts to explore.

The dam, with a design by the USA WPA, is regulated by the Kansas Department of Agriculture and undergoes regular inspection and enforcement measures. It has a low hazard potential and has not been rated for its condition assessment. Although it does not feature a spillway, the dam does have a spillway width of 82 feet. With its scenic location and historical significance, Garnett City Dam offers a unique opportunity for visitors to enjoy recreational activities and appreciate the beauty of its surroundings.

Located in Anderson County, Kansas, Garnett City Dam is a symbol of both local history and environmental stewardship. As a popular spot for water supply and recreation, this earth-type dam continues to attract visitors with its tranquil waters and scenic views. Whether exploring the dam for its engineering marvels or simply enjoying a day out in nature, Garnett City Dam remains a fascinating destination for water resource and climate enthusiasts alike.

Year Completed

1935

Dam Length

1100

Dam Height

60

River Or Stream

POTTAWATOMIE CREEK-TR

Primary Dam Type

Earth

Surface Area

45

Hydraulic Height

49

Drainage Area

2.11

Nid Storage

920

Structural Height

55

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

60
       
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.