Oknoname 30074 Reservoir Report

Last Updated: December 16, 2025

Oknoname 30074 is a privately owned Earth dam located in Logan, Oklahoma, with a primary purpose classified as "Other." Constructed in 2000 by USDA NRCS, this dam stands at a height of 34.2 feet and has a length of 565 feet, serving a drainage area of 120 acres.


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Summary

The dam has a normal storage capacity of 71 acre-feet, with a maximum storage of 124 acre-feet and a surface area of 7.7 acres.

Despite its low hazard potential and fair condition assessment, Oknoname 30074 poses a very high risk due to its location on an unnamed tributary to Fall Creek. The dam is regulated, permitted, inspected, and enforced by the State of Oklahoma, specifically by the Oklahoma Water Resources Board (OWRB). With a controlled spillway type and a single valve outlet gate, this dam has not been modified since its completion and is scheduled for inspection every five years.

In the event of an emergency, it is crucial for the owners and stakeholders of Oknoname 30074 to ensure that an Emergency Action Plan (EAP) is prepared and regularly updated. While the dam's risk management measures and guidelines compliance are not specified, its risk assessment remains a top priority for maintaining the safety and integrity of this essential water resource infrastructure in Oklahoma.

Year Completed

2000

Dam Length

565

Dam Height

34.2

River Or Stream

UNNAMED TRIB TO FALL CREEK

Primary Dam Type

Earth

Surface Area

7.7

Drainage Area

120

Nid Storage

124

Structural Height

33

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

34
       
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.
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Area Campgrounds

Location Reservations Toilets
Oknoname 30074Guthrie Lake Preview Guthrie Lake
Oknoname 30074Arcadia Lake Preview Arcadia Lake
Oknoname 30074Liberty Lake Preview Liberty Lake