Frd No 11 Reservoir Report

Last Updated: January 2, 2026

Frd No 11, located in Rush County, Kansas, is a locally owned earth dam designed by the USDA NRCS with a primary purpose of flood risk reduction.


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Summary

This dam has a height of 31 feet and a length of 1780 feet, providing a storage capacity of 1261 acre-feet and covering a surface area of 27 acres. The dam has a low hazard potential and is not currently rated for condition assessment.

Operated and regulated by the Kansas Department of Agriculture, Frd No 11 is equipped with an uncontrolled spillway with a width of 100 feet, capable of handling a maximum discharge of 2327 cubic feet per second. The dam is surrounded by a drainage area of 5 square miles and has a normal storage capacity of 18 acre-feet. Despite its moderate risk assessment rating, Frd No 11 has not been inspected since October 1990 and does not have an emergency action plan in place.

For water resource and climate enthusiasts, Frd No 11 serves as a critical infrastructure for flood risk reduction in the region. With its strategic location and design features, this earth dam plays a vital role in protecting the local community from potential flooding events. However, there is room for improvement in terms of regular inspections, condition assessment, and emergency preparedness to ensure the continued safety and effectiveness of Frd No 11 in the face of changing climate conditions.

Dam Length

1780

Dam Height

31

Primary Dam Type

Earth

Surface Area

27

Drainage Area

5

Nid Storage

1261

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

31
       
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.