Scs-Stillwater Creek Site-55 Reservoir Report

Last Updated: December 7, 2025

SCS-Stillwater Creek Site-55 is a state-regulated dam located in Payne, Oklahoma, designed by the USDA NRCS with a primary purpose of flood risk reduction.


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Summary

Built in 1966, this earth dam stands at a height of 38 feet and spans 1340 feet along the TR-STILLWATER CREEK. With a storage capacity of 1213 acre-feet, this dam plays a crucial role in managing water flow and reducing the risk of flooding in the region.

Although last inspected in 1980 and rated as having low hazard potential, SCS-Stillwater Creek Site-55 is considered to have a very high risk due to its location and structural characteristics. The dam features a controlled spillway and a single valve outlet gate for water release. Despite not having a current condition assessment, the dam continues to serve its purpose effectively with state agencies overseeing its regulation, inspection, and enforcement to ensure the safety of nearby communities.

With a state jurisdiction and the Oklahoma Water Resources Board as the regulatory agency, SCS-Stillwater Creek Site-55 remains an essential infrastructure for flood control in the area. Climate and water resource enthusiasts will appreciate the strategic design and operational measures in place to mitigate flood risks and protect downstream areas from potential inundation events.

Year Completed

1966

Dam Length

1340

Dam Height

38

River Or Stream

TR-STILLWATER CREEK

Primary Dam Type

Earth

Surface Area

33

Hydraulic Height

38

Nid Storage

1213

Structural Height

38

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

38
       
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.