Sportsman Lake Reservoir Report

Last Updated: December 7, 2025

Sportsman Lake, located in Custer County, Oklahoma, is a privately owned reservoir regulated by the Oklahoma Water Resources Board.


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Summary

Constructed in 1960, this Earth dam stands at 47 feet high and has a storage capacity of 560 acre-feet. The lake primarily serves as a recreational area for fishing and boating, with a spillway width of 2 feet and a maximum discharge of 5890 cubic feet per second.

Despite its low hazard potential, Sportsman Lake is classified as having a very high risk due to its location on Little Deep Creek. The dam is equipped with a single valve outlet gate for water management, and inspections are conducted every 5 years to ensure its structural integrity. While the condition of the dam is currently not rated, its risk assessment remains a top priority for the local authorities.

For water resource and climate enthusiasts, Sportsman Lake offers a unique opportunity to explore the intersection of man-made infrastructure and natural ecosystems. With its picturesque setting and recreational amenities, this reservoir serves as a valuable asset in the region's water management efforts. While the dam's risk level is closely monitored, visitors can enjoy a peaceful retreat amidst Oklahoma's scenic beauty.

Year Completed

1960

Dam Length

350

Dam Height

47

River Or Stream

LITTLE DEEP CREEK

Primary Dam Type

Earth

Hydraulic Height

27

Nid Storage

560

Structural Height

47

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

47
       
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.