Fort Cobb Reservoir Near Fort Cobb Reservoir Report

Last Updated: December 6, 2025

Fort Cobb Reservoir, located near Fort Cobb, Oklahoma, was built in 1958 by the Bureau of Reclamation as a water source for irrigation and municipal use.


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Summary

The reservoir is fed by three main streams: Cobb Creek, Sand Creek, and Sugar Creek. It has a capacity of 134,500 acre-feet and covers 4,000 acres. Fort Cobb Reservoir is used for agricultural purposes, providing irrigation water for crops like cotton, wheat, and alfalfa. It is also used for recreational activities like boating, fishing, and camping. The reservoir has a surface flow of 50 cubic feet per second and receives snowmelt from the Wichita Mountains to the west, which contributes to the water supply. The reservoir plays a vital role in the economy of the surrounding area, supporting agriculture and tourism.

Reservoir Details

Gage Height, Ft 24hr Change 0.0%
Percent of Normal 100%
Minimum 1,338.57 ft
2024-11-02
Maximum 1,346.12 ft
2022-06-13
Average 1,341 ft
Dam_Height 101
Hydraulic_Height 95
Drainage_Area 317
Year_Completed 1959
Nid_Storage 298280
Structural_Height 122
Surface_Area 5882
Hazard_Potential High
Outlet_Gates Valve - 1
River_Or_Stream COBB CR
Dam_Length 9900
Primary_Dam_Type Earth
Nid_Height 122
       
Seasonal Comparison
Precipitation, Total, In Levels
Gage Height, Ft Levels

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.