Oknoname 145001 Reservoir Report

Last Updated: January 11, 2026

Oknoname 145001 is a privately owned earth dam located in Wagoner, Oklahoma, along the Flat Rock Creek.


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Summary

Constructed in 1960, this dam stands at a height of 15 feet and has a hydraulic height of 11 feet. With a storage capacity of 60 acre-feet, the dam serves a primary purpose classified as "Other", with a spillway type described as "Controlled".

Despite being classified as having a low hazard potential, Oknoname 145001 is considered to have a very high risk assessment rating. The dam has one valve outlet gate and a controlled spillway width of 1 foot. Although last inspected in 2004, the dam is reported to have not been rated for its condition assessment. While it meets state regulatory standards and is subject to inspection, enforcement, and permitting by the Oklahoma Water Resources Board, the dam's risk management and emergency action plan status remain unclear.

Given its location in a region susceptible to climate variability and changing hydrological patterns, Oknoname 145001 serves as a vital infrastructure for water resource management in the area. As enthusiasts and stakeholders in water resources and climate adaptation, understanding the risk profile and operational status of dams like Oknoname 145001 is crucial in ensuring the safety and sustainability of water systems in the face of evolving environmental challenges.

Year Completed

1960

Dam Length

700

Dam Height

15

River Or Stream

FLAT ROCK CR

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

11

Nid Storage

60

Structural Height

15

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

15
       
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.