Scs-Kadashan Bottom Site-4 Reservoir Report

Last Updated: December 5, 2025

SCS-Kadashan Bottom Site-4, located in Stone Bluff, Oklahoma, is a state-regulated dam with a primary purpose of flood risk reduction.


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Summary

Built in 1976 by USDA NRCS designers, this earth dam stands at 28 feet high and spans 740 feet in length along the TR-ARKANSAS River. With a low hazard potential and a very high risk assessment rating, this dam is equipped with a controlled spillway and a single valve outlet gate for water management.

Despite being last inspected in 1980, this dam remains in "Not Rated" condition. The surrounding area has a normal storage capacity of 52 acre-feet, with a maximum storage of 111 acre-feet. The dam's structure is predominantly made of stone and soil, contributing to its stability. While the risk assessment is high, the dam's emergency action plan and risk management measures are currently not documented, indicating a potential area for improvement in disaster preparedness.

Owned and regulated by the Oklahoma Water Resources Board, SCS-Kadashan Bottom Site-4 plays a crucial role in managing flood risks along the TR-ARKANSAS River. As water resource and climate enthusiasts, understanding the intricacies of this dam's design, purpose, and condition can provide valuable insights into the broader efforts to safeguard communities and ecosystems from the impacts of extreme weather events and flooding in Wagoner County, Oklahoma.

Year Completed

1976

Dam Length

740

Dam Height

28

River Or Stream

TR-ARKANSAS RIVER

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

26

Nid Storage

111

Structural Height

28

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
Seasonal Comparison

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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.