Scs-Rush Creek Site-028 Reservoir Report

Last Updated: December 9, 2025

SCS-Rush Creek Site-028, located in Garvin County, Oklahoma, is a state-regulated earth dam built in 1959 by the USDA NRCS for flood risk reduction on TR-Rush Creek.


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Summary

With a height of 34 feet and a hydraulic height of 30 feet, this dam has a maximum storage capacity of 481 acre-feet and a normal storage capacity of 241 acre-feet. The dam spans 1240 feet in length and has a controlled spillway width of 2 feet.

Despite being classified as having a low hazard potential, SCS-Rush Creek Site-028 is considered to have a very high risk level, with a risk assessment rating of 1. The condition assessment of the dam is currently not rated, with the last inspection taking place in 1980. The dam is equipped with a single valve outlet gate and is subject to state permitting, inspection, and enforcement by the Oklahoma Water Resources Board.

Overall, SCS-Rush Creek Site-028 serves a vital purpose in mitigating flood risks in the region and is an important component of the flood control infrastructure on Rush Creek. However, ongoing assessments and management measures are needed to ensure the safety and effectiveness of this critical water resource infrastructure in Garvin County, Oklahoma.

Year Completed

1959

Dam Length

1240

Dam Height

34

River Or Stream

TR-RUSH CREEK

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

30

Nid Storage

481

Structural Height

34

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

34
       
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.
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