Scs-Oak Creek Site-005 Reservoir Report

Last Updated: December 6, 2025

SCS-Oak Creek Site-005, also known as Oak Creek Site No 5, is a state-regulated water supply dam located in Washita County, Oklahoma.


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Summary

Owned by the state and designed by USDA NRCS, this Earth dam stands at a height of 60 feet with a hydraulic height of 55 feet. Completed in 1968, it serves the primary purpose of water supply for the area, with a storage capacity of 3656 acre-feet and a normal storage level of 1578 acre-feet.

With a spillway type of Controlled and a hazard potential rated as High, this dam on Gyp Creek has a fair condition assessment as of its last inspection in 2011. It has a very high risk assessment rating and is under the regulatory oversight of the Oklahoma Water Resources Board. The dam's outlet includes a single valve, and it has a maximum discharge capacity of 11550 cubic feet per second. Despite its age, SCS-Oak Creek Site-005 continues to play a crucial role in providing water resources for the region, highlighting the importance of maintaining and monitoring such critical infrastructure for water supply and climate resilience.

Year Completed

1968

Dam Length

1600

Dam Height

60

River Or Stream

GYP CR

Primary Dam Type

Earth

Surface Area

135

Hydraulic Height

55

Drainage Area

10.1

Nid Storage

3656

Structural Height

60

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

60
       
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.