Masseys Reservoir Report

Last Updated: December 14, 2025

Masseys, located in Arcadia, Oklahoma, is a privately owned dam regulated by the Oklahoma Water Resources Board.


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Summary

Completed in 1970, this earth dam stands at 21 feet high and spans 650 feet in length, with a storage capacity of 122 acre-feet. The dam serves a primary purpose that falls under the "Other" category, with a spillway type classified as "Controlled."

With a hazard potential rated as "High" and a condition assessment of "Fair," Masseys poses a significant risk, particularly in terms of inundation. The risk assessment indicates a very high risk level, with appropriate risk management measures yet to be defined. Despite its fair condition, the dam is subject to regular inspections and meets state permitting and enforcement requirements, highlighting the importance of ongoing monitoring and maintenance to ensure public safety and water resource protection in the area.

As a key structure on the TR-Deep Fork River, Masseys plays a crucial role in managing water resources in the region. Its association with the Tulsa District of the US Army Corps of Engineers underscores its significance in the local water infrastructure. Climate and water resource enthusiasts would find Masseys an intriguing case study, highlighting the intersection of infrastructure, regulation, and risk management in the context of climate change and water resource management.

Year Completed

1970

Dam Length

650

Dam Height

21

River Or Stream

TR-DEEP FORK RIV

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

21

Nid Storage

122

Structural Height

21

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

21
       
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.