Scs-Saddle Mountain Creek Site-101 Reservoir Report

Last Updated: December 6, 2025

SCS-Saddle Mountain Creek Site-101, located in Carnegie, Oklahoma, is a state-regulated dam designed by the USDA NRCS in 1974 for flood risk reduction along the TR-STINKING CREEK.


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Summary

The earth dam stands at 22 feet high with a hydraulic height of 18 feet and a length of 1520 feet, providing a storage capacity of 144 acre-feet. The dam features a controlled spillway and a single valve outlet gate for water management.

Despite being classified as having a low hazard potential, the dam at SCS-Saddle Mountain Creek Site-101 has a very high risk assessment due to its condition not being rated and not having been inspected since 1980. The emergency action plan (EAP) status, inundation maps, and risk management measures are also unknown, raising concerns about the dam's readiness in the event of an emergency. With its location in a high-risk area, it is crucial for state regulators and the OWRB to ensure regular inspections and maintenance to mitigate any potential risks associated with the dam.

Year Completed

1974

Dam Length

1520

Dam Height

22

River Or Stream

TR-STINKING CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

18

Nid Storage

144

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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.