Scs-Winter Creek Site-19 Reservoir Report

Last Updated: December 9, 2025

SCS-Winter Creek Site-19 in McClain County, Oklahoma is a state-regulated earth dam designed by USDA NRCS with a primary purpose of flood risk reduction.


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Summary

The dam, completed in 1967, stands at a height of 40 feet with a hydraulic height of 37 feet and a length of 1520 feet. It has a NID storage capacity of 757 acre-feet and a normal storage of 92 acre-feet, serving the TR-LAFLIN CR river/stream.

Despite being last inspected in 1980, the dam has a low hazard potential and is not currently rated for its condition. The spillway is controlled with a width of 1 foot and features one valve outlet gate. The risk assessment for SCS-Winter Creek Site-19 indicates a very high risk level (1), prompting the need for further evaluation and potential risk management measures to ensure the safety and integrity of the dam for flood protection in the region.

The location of SCS-Winter Creek Site-19 in Bradley, Oklahoma, under the jurisdiction of OWRB, highlights its importance in managing water resources and mitigating flood risks in the area. With its historical significance and potential risks, continued monitoring and evaluation will be essential to ensure the effectiveness of this critical infrastructure in protecting the surrounding communities from potential flooding events.

Year Completed

1967

Dam Length

1520

Dam Height

40

River Or Stream

TR-LAFLIN CR

Primary Dam Type

Earth

Surface Area

17

Hydraulic Height

37

Nid Storage

757

Structural Height

40

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

40
       
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.