Scs-South Clinton Laterals Site-L16 Reservoir Report

Last Updated: December 6, 2025

SCS-South Clinton Laterals Site-L16, located in Cloud Chief, Oklahoma, is a state-regulated earth dam designed and constructed by USDA NRCS in 1971 for flood risk reduction along the TR-Washita River.


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Summary

This dam stands at a height of 22 feet with a hydraulic height of 20 feet and a length of 3730 feet, providing a storage capacity of 99 acre-feet for flood control purposes. The dam's spillway type is controlled with a spillway width of 1 foot, and it is equipped with one valve outlet gate.

Despite being classified as having a low hazard potential, this dam has a very high risk assessment rating of 1 due to its condition being not rated and lacking updated emergency action plans and risk management measures. The last inspection date recorded for this structure was in 1980, with an inspection frequency of 5 years. With the dam being located in Washita County, Oklahoma and falling under the jurisdiction of the OWRB, there is a need for enhanced monitoring and maintenance to ensure the safety and effectiveness of this critical infrastructure for managing water resources in the region.

Year Completed

1971

Dam Length

3730

Dam Height

22

River Or Stream

TR-WASHITA RIVER

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

20

Nid Storage

99

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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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.