Frd No 3-7 Reservoir Report

Last Updated: December 5, 2025

Frd No 3-7, also known as Upper Verdigris WS Dam 3 7, is a crucial water resource infrastructure located in Lyon County, Kansas, specifically in the city of Madison.


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Summary

This earth dam, designed by the USDA NRCS and completed in 1971, serves the primary purpose of flood risk reduction along the Rock Creek. With a height of 51 feet and a storage capacity of 6698.66 acre-feet, this dam plays a significant role in mitigating potential flooding events in the area.

Managed by the local government and regulated by the Kansas Department of Agriculture, Frd No 3-7 has a spillway width of 100 feet and a maximum discharge capacity of 5520 cubic feet per second. Despite being classified as having a significant hazard potential, the dam is currently in fair condition, with a moderate risk assessment rating. Regular inspections are conducted to ensure its structural integrity and functionality, with the last inspection taking place in November 2018.

For water resource and climate enthusiasts, Frd No 3-7 represents a vital piece of infrastructure that contributes to the management of water resources and the protection of communities from potential flood risks. Its presence along the Rock Creek in Kansas underscores the importance of sustainable water management practices and the role of earth dams in enhancing resilience to extreme weather events. With its strategic location and design, Frd No 3-7 stands as a testament to the ongoing efforts to safeguard water resources and promote climate resilience in the region.

Year Completed

1971

Dam Length

1625

Dam Height

51

River Or Stream

ROCK CREEK

Primary Dam Type

Earth

Surface Area

90.12

Hydraulic Height

48

Drainage Area

17.53

Nid Storage

6698.66

Structural Height

51

Outlet Gates

None

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

51
       
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.