Scs-Stillwater Creek Site-10 Reservoir Report

Last Updated: December 6, 2025

SCS-Stillwater Creek Site-10 is a state-owned Earth dam located in Payne, Oklahoma, along the TR-Little Stillwater Creek.


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Summary

Completed in 1966 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction. Standing at a height of 33 feet and a length of 800 feet, it has a maximum storage capacity of 262 acre-feet and a normal storage capacity of 28 acre-feet. The dam has a controlled spillway with a width of 1 foot and one valve outlet gate.

Despite being assessed as having a low hazard potential and not having a condition rating, the dam at SCS-Stillwater Creek Site-10 is noted to have a very high risk level with a DSAC risk rating of 1. Although last inspected in 1980, the dam is maintained by the OWRB and falls under state jurisdiction for regulation, permitting, inspection, and enforcement. The surrounding area is at risk of inundation, but no emergency action plan or risk management measures have been reported. For water resource and climate enthusiasts, this site presents a unique opportunity to explore the intersecting factors of dam infrastructure, risk assessment, and emergency preparedness in the face of climate change challenges.

Year Completed

1966

Dam Length

800

Dam Height

33

River Or Stream

TR-LITTLE STILLWATER CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

33

Nid Storage

262

Structural Height

33

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

33
       
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.