Scs-Fourche Maline Creek Site-13 Reservoir Report

Last Updated: December 6, 2025

SCS-Fourche Maline Creek Site-13, located in Wister, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS with a primary purpose of flood risk reduction along the Long Creek.


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Summary

Completed in 1969, this dam stands at a height of 53 feet and has a storage capacity of 4443 acre-feet, serving as a critical infrastructure for mitigating flood hazards in the region. Despite being classified as having a low hazard potential, the dam is noted for its very high risk assessment rating.

Managed by the Oklahoma Water Resources Board, SCS-Fourche Maline Creek Site-13 has a controlled spillway and a single outlet valve for water release. The dam's structural integrity and condition assessment remain unrated, with the last inspection conducted in 1980. With a drainage area unspecified and a maximum discharge capacity of 7600 cubic feet per second, this earth dam plays a crucial role in protecting downstream communities from potential flooding events. For water resource and climate enthusiasts, this site serves as a noteworthy example of engineered infrastructure essential for managing water resources and reducing flood risks in Oklahoma.

Year Completed

1969

Dam Length

2000

Dam Height

53

River Or Stream

LONG CREEK

Primary Dam Type

Earth

Surface Area

49

Hydraulic Height

53

Nid Storage

4443

Structural Height

53

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

53
       
Seasonal Comparison

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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.