Scs-Stillwater Creek Site-29 Reservoir Report

Last Updated: December 7, 2025

SCS-Stillwater Creek Site-29, located in Payne County, Oklahoma, is a state-regulated earth dam constructed in 1967 by the USDA NRCS with a primary purpose of flood risk reduction along the TR-Boomer Creek.


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Summary

The dam stands at a height of 27 feet, with a length of 620 feet, and has a maximum storage capacity of 144 acre-feet. It has a controlled spillway and is equipped with a valve outlet gate for water discharge.

The dam's hazard potential is classified as high, and its condition assessment is rated as fair. Despite being evaluated with a very high risk level, the dam has been inspected periodically, with the last inspection conducted in September 2011. The risk management measures and emergency action plan status for the site are currently unspecified, indicating a potential area for improvement in ensuring the safety and reliability of the structure.

With its crucial role in flood risk reduction and water resource management in the region, SCS-Stillwater Creek Site-29 serves as a key infrastructure owned by the State of Oklahoma and regulated by the OWRB. The site's location in the city of Stillwater further underscores its importance in protecting the local community and surrounding areas from potential flood hazards. Climate and water resource enthusiasts may find interest in monitoring the site's condition and risk management strategies to ensure its continued effectiveness in safeguarding the region against potential flooding events.

Year Completed

1967

Dam Length

620

Dam Height

27

River Or Stream

TR-BOOMER CREEK

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

27

Drainage Area

0.33

Nid Storage

144

Structural Height

27

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

27
       
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.