Frd No 4 Reservoir Report

Last Updated: December 6, 2025

Frd No 4, also known as Grant Shanghai Watershed Dam 4, is a local government-owned structure in Kansas that plays a crucial role in flood risk reduction along the West Branch Grant Creek.


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Summary

Built in 1966, this earth dam stands at a height of 32 feet and has a storage capacity of 325.49 acre-feet, serving the primary purpose of flood risk reduction. With a spillway width of 40 feet and a maximum discharge of 620 cubic feet per second, Frd No 4 ensures effective water management during heavy rainfall events.

Located in Chautauqua County, Kansas, Frd No 4 is regulated by the state Department of Agriculture and undergoes regular inspections and enforcement to ensure its structural integrity and functionality. While the dam is classified as having a low hazard potential, it is rated as moderate in terms of risk assessment due to its location and design. Despite its age, Frd No 4 continues to serve its purpose effectively, showcasing the importance of proper maintenance and oversight in managing water resources and adapting to changing climate conditions. For water resource and climate enthusiasts, Frd No 4 serves as a prime example of infrastructure that plays a crucial role in mitigating flood risks and protecting communities in vulnerable areas.

Year Completed

1966

Dam Length

880

Dam Height

32

River Or Stream

WEST BRANCH GRANT CREEK-TR

Primary Dam Type

Earth

Surface Area

5.95

Hydraulic Height

29

Drainage Area

0.82

Nid Storage

325.49

Structural Height

32

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

32
       
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.