Oknoname 30136 Reservoir Report

Last Updated: December 6, 2025

Oknoname 30136, a privately owned structure located in Caddo, Oklahoma, plays a crucial role in flood risk reduction along Willow Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1998 by USDA NRCS designers, this stone-core dam stands at a height of 29.9 feet and has a storage capacity of 62.6 acre-feet. With a drainage area of 2.65 square miles and a maximum discharge of 1589 cubic feet per second, this dam serves as a vital infrastructure for managing water flow in the region.

Despite its low hazard potential, Oknoname 30136 is considered to have a very high risk level, highlighting the importance of its maintenance and oversight. The Oklahoma Water Resources Board regulates and inspects the dam regularly to ensure its structural integrity and effectiveness in flood control. While the condition assessment is currently not rated, the dam's emergency action plan and risk management measures are crucial aspects that need to be addressed to enhance its resilience and response capabilities in times of need.

As a key component in the flood risk reduction strategy for the area, Oknoname 30136 stands as a testament to the collaborative efforts between private owners, government agencies, and design professionals in safeguarding communities against natural disasters. Its strategic location, design features, and operational capabilities make it a critical asset in maintaining the safety and well-being of residents in Caddo, Oklahoma, demonstrating the importance of sustainable water resource management in mitigating the impacts of climate change.

Year Completed

1998

Dam Length

600

Dam Height

29.9

River Or Stream

WILLOW CREEK

Hydraulic Height

29.9

Drainage Area

2.65

Nid Storage

62.6

Structural Height

29.9

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.