Skiatook Dam Reservoir Report

Last Updated: December 6, 2025

Skiatook Dam, also known as Skiatook Lake, is a Federal-owned structure located in Osage, Oklahoma.


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Summary

Completed in 1984 by the US Army Corps of Engineers, the dam serves primarily for flood risk reduction, but also supports recreation and water supply purposes. Standing at a height of 143 feet with a length of 3590 feet, Skiatook Dam has a storage capacity of 893,000 acre-feet and covers a surface area of 10,540 acres on Hominy Creek.

Despite being classified with a moderate risk level, Skiatook Dam is closely monitored and managed by the USACE to mitigate potential hazards. Regular inspections, emergency exercises, and a well-maintained Emergency Action Plan are key components of the risk management measures in place. The dam's instrumentation and monitoring program provide early detection of any safety concerns, ensuring the safety of downstream communities, including Skiatook, Sperry, Claremore, Owasso, and Tulsa, in the event of a dam failure or large flood release scenario. Overall, Skiatook Dam plays a crucial role in protecting the surrounding areas from catastrophic flooding and serves as a vital infrastructure for water resource management in Oklahoma.

Year Completed

1984

Dam Length

3590

Dam Height

143

River Or Stream

HOMINY CREEK

Primary Dam Type

Earth

Surface Area

10540

Hydraulic Height

138

Drainage Area

354

Nid Storage

893000

Structural Height

143

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

143
       
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.