Scs-Fort Cobb Laterals Site-001 Reservoir Report

Last Updated: December 6, 2025

The SCS-Fort Cobb Laterals Site-001, located in Carnegie, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS for flood risk reduction on Cedar Creek.


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Summary

Completed in 1970, this dam stands at 46 feet tall with a hydraulic height of 42 feet and a length of 780 feet. With a normal storage capacity of 257 acre-feet and a maximum storage capacity of 1076 acre-feet, this dam plays a crucial role in managing water resources in the Caddo County area.

Despite its low hazard potential, the SCS-Fort Cobb Laterals Site-001 is classified as having a very high risk assessment, emphasizing the importance of proper risk management measures. Although not currently rated for its condition, the dam has undergone inspections every 5 years, with the last inspection conducted in 1980. With one valve outlet gate and a controlled spillway, this dam is equipped to handle a maximum discharge of 3200 cubic feet per second, ensuring the safety of surrounding areas in times of high water flow. Water resource and climate enthusiasts would find the SCS-Fort Cobb Laterals Site-001 to be a fascinating example of engineered infrastructure that plays a critical role in protecting communities from flood risks in Oklahoma.

Year Completed

1970

Dam Length

780

Dam Height

46

River Or Stream

CEDAR CR

Primary Dam Type

Earth

Surface Area

38

Hydraulic Height

42

Nid Storage

1076

Structural Height

46

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

46
       
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.