Frd No 1 Reservoir Report

Last Updated: December 6, 2025

Frd No 1, also known as Thompsonville Watershed Dam 1, is a key water resource in Kansas that serves the primary purpose of flood risk reduction.


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Summary

Built in 1960 by the USDA NRCS, this earth dam stands at a height of 25.5 feet with a hydraulic height of 24 feet and a structural height of 27 feet. It has a maximum storage capacity of 735.1 acre-feet and covers a surface area of 23.35 acres, providing essential protection to the surrounding area from potential flooding events.

Located in Perry, Kansas, Frd No 1 is under the jurisdiction of the Kansas Department of Agriculture and is regulated, inspected, and enforced by state agencies to ensure its structural integrity and safety. With a hazard potential rated as high and a condition assessment of fair, it is crucial for the dam to undergo regular inspections and maintenance to mitigate any potential risks. The dam has a moderate risk assessment rating of 3, highlighting the importance of ongoing risk management measures to safeguard the local community and the Delaware River-TR watershed.

While Frd No 1 does not have a designated Emergency Action Plan (EAP) or inundation maps prepared, it is imperative for stakeholders to collaborate on developing comprehensive emergency protocols and risk management strategies to enhance the dam's overall safety and resilience. With its critical role in flood risk reduction and water resource management in Jefferson County, Kansas, Frd No 1 serves as a vital infrastructure asset that requires proactive monitoring, maintenance, and emergency preparedness to ensure the well-being of the surrounding community and ecosystem in the face of changing climate conditions.

Year Completed

1960

Dam Length

1220

Dam Height

25.5

River Or Stream

DELAWARE RIVER-TR

Primary Dam Type

Earth

Surface Area

23.35

Hydraulic Height

24

Drainage Area

1.81

Nid Storage

735.1

Structural Height

27

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

27
       
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.
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