Scs-Lost Duck Creek Site-D9 Reservoir Report

Last Updated: December 17, 2025

SCS-Lost Duck Creek Site-D9 is a state-regulated earth dam located in Kay County, Oklahoma.


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Summary

Designed by the USDA NRCS and completed in 1960, this dam serves the primary purpose of flood risk reduction along TR Duck Creek. With a structural height of 45 feet and a hydraulic height of 39 feet, it has a storage capacity of 121 acre-feet and a surface area of 24 acres. The dam features a controlled spillway and one valve outlet gate, with a hazard potential rated as low and a risk assessment of very high.

Owned by the state of Oklahoma, SCS-Lost Duck Creek Site-D9 is inspected every 5 years to ensure its safety and functionality. Although the condition assessment is currently not rated, the dam has not undergone any modifications since its construction. The dam's regulatory agency is the OWRB, and it is situated within the jurisdiction of the state. The risk management measures and emergency action plan status for the dam are not specified in the available data, but its design and purpose highlight its importance in managing flood risks in the region.

Year Completed

1960

Dam Height

45

River Or Stream

TR DUCK CREEK

Primary Dam Type

Earth

Surface Area

24

Hydraulic Height

39

Nid Storage

121

Structural Height

45

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

45
       
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.