Frd No 43 Reservoir Report

Last Updated: December 6, 2025

Frd No 43, also known as Elk River WS Joint District No 47, is a local government-owned earth dam located in Elk Falls, Kansas.


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Summary

Completed in 1977, this dam serves the primary purpose of flood risk reduction along the Mound Branch Elk River. With a height of 43 feet and a length of 1900 feet, Frd No 43 has a storage capacity of 1539.7 acre-feet and a normal storage of 132.7 acre-feet, covering a surface area of 26.3 acres and draining an area of 3.3 square miles.

Managed by the Kansas City District of the US Army Corps of Engineers, Frd No 43 has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, this dam has not been inspected since November 2003, with an unknown inspection frequency. The dam features an uncontrolled spillway with a width of 120120 feet and lacks outlet gates and associated structures. With its location at 24,30S, 9E and under the jurisdiction of the Kansas Department of Agriculture, Frd No 43 plays a crucial role in mitigating flood risks in the Elk River watershed.

Year Completed

1977

Dam Length

1900

Dam Height

35

River Or Stream

MOUND BRANCH ELK RIVER

Primary Dam Type

Earth

Surface Area

26.3

Hydraulic Height

39

Drainage Area

3.3

Nid Storage

1539.7

Structural Height

43

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

43
       
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.