Scs-Fort Cobb Laterals Site-009 Reservoir Report

Last Updated: December 6, 2025

SCS-Fort Cobb Laterals Site-009, located in Caddo County, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS in 1972 for flood risk reduction along the Washita River.


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Summary

The dam stands at a height of 56 feet and has a hydraulic height of 53 feet, with a storage capacity of 260 acre-feet. Despite its low hazard potential, the dam is classified as having a very high risk level, highlighting the importance of regular inspections and risk management measures.

The dam features a controlled spillway and a single outlet gate for water release when necessary. While it has not been rated for its current condition, the last inspection took place in 1980, with a scheduled inspection frequency of every 5 years. With the dam's strategic location and purpose in flood risk reduction, it plays a crucial role in water resource management and climate resilience efforts in the region.

As water resource and climate enthusiasts, the SCS-Fort Cobb Laterals Site-009 serves as a fascinating case study in dam infrastructure and risk assessment. Its history, design, and potential risks underscore the importance of proactive monitoring and maintenance to ensure the safety and effectiveness of water management structures in the face of changing climate conditions. By staying informed and engaged with projects like this, enthusiasts can contribute to sustainable water resource management practices and climate adaptation strategies in their communities.

Year Completed

1972

Dam Length

670

Dam Height

56

River Or Stream

TR-WASHITA RIVER

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

53

Nid Storage

260

Structural Height

56

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

56
       
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.