Oknoname 067008 Reservoir Report

Last Updated: December 21, 2025

Oknoname 067008 is a privately owned earth dam located in Jefferson, Oklahoma, specifically at the HWY 89 Bridge Gage on the TR North Mud Creek.


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Summary

Built in 1968, this dam stands at a height of 21 feet and has a hydraulic height of 16 feet, with a length of 510 feet. It serves a primary purpose that is classified as "Other" and has a maximum storage capacity of 55 acre-feet, with a normal storage of 42 acre-feet.

Despite being categorized as having a low hazard potential, Oknoname 067008 is considered to have a very high risk level, with a risk assessment rating of 1. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state jurisdiction, permitting, inspection, and enforcement. Although it has not been rated for its condition assessment, it is equipped with a controlled spillway and one outlet valve for water release. The dam is located within the Fort Worth District of the US Army Corps of Engineers and is not associated with any federal agency funding or oversight.

Overall, Oknoname 067008 represents an important water resource infrastructure in Oklahoma, playing a crucial role in managing water flow and storage in the TR North Mud Creek watershed. As a privately owned structure, it highlights the diverse ownership of dams across the state and the various regulatory agencies involved in ensuring their safe operation. With its unique design features and risk profile, this dam serves as a focal point for water resource and climate enthusiasts interested in understanding the intersection of infrastructure, geography, and environmental risk management.

Year Completed

1968

Dam Length

510

Dam Height

21

River Or Stream

TR NORTH MUD CREEK

Primary Dam Type

Earth

Surface Area

11

Hydraulic Height

16

Nid Storage

55

Structural Height

21

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

21
       
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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.