Strowbridge Dam Reservoir Report

Last Updated: December 6, 2025

Strowbridge Dam, located in Richland, Kansas, along Strowbridge Creek, is a recreational dam completed in 1966 with a primary purpose of providing water supply and recreational opportunities.


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Summary

Managed by the local government, this earth dam stands at a height of 45 feet and spans 1435 feet, with a storage capacity of 4900 acre-feet and a normal storage level of 3100 acre-feet. The dam, designed by Kramer Engineering/Moehr, is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its safety and functionality.

With a hazard potential categorized as high and a fair condition assessment, Strowbridge Dam poses certain risks that need to be managed effectively. Although no spillway type is specified, the dam features a spillway width of 125 feet and is situated within the Tulsa District of the US Army Corps of Engineers. The dam's location in Osage County, Kansas, highlights the importance of its role in water resource management and the need for ongoing monitoring and maintenance to safeguard against potential hazards and ensure its continued functionality for both recreational and water supply purposes.

Year Completed

1966

Dam Length

1435

Dam Height

45

River Or Stream

STROWBRIDGE CREEK

Primary Dam Type

Earth

Surface Area

239

Drainage Area

5

Nid Storage

4900

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

45
       
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.