Oknoname 067009 Reservoir Report

Last Updated: December 21, 2025

Oknoname 067009 is a privately owned dam located in Jefferson, Oklahoma, specifically at the HWY 89 BRIDGE GAGE along the TR NORTH MUD CREEK.


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Summary

Constructed in 1965, this Earth type dam stands at 23 feet high and stretches 420 feet in length, with a storage capacity of 55 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement, ensuring its safety and compliance with regulations.

Despite its low hazard potential, Oknoname 067009 is classified as having a very high risk, with a risk assessment rating of 1. The dam features a controlled spillway and a single valve outlet gate. While the dam's condition assessment is currently labeled as "Not Rated," its emergency action plan (EAP) status, inundation maps, and risk management measures are not fully updated or prepared. The surrounding area is under the jurisdiction of the Fort Worth District of the US Army Corps of Engineers, with no federal agency ownership or funding associated with the dam.

For water resource and climate enthusiasts, Oknoname 067009 presents an intriguing case study in dam management and risk assessment. The dam's location, design, and regulatory oversight offer valuable insights into the complexities of maintaining and ensuring the safety of critical water infrastructure. With a focus on enhancing emergency preparedness and updating risk management strategies, Oknoname 067009 serves as a reminder of the importance of proactive monitoring and maintenance in safeguarding our water resources against potential hazards.

Year Completed

1965

Dam Length

420

Dam Height

23

River Or Stream

TR NORTH MUD CREEK

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

18

Nid Storage

55

Structural Height

23

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

23
       
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.