Beggs Reservoir Report

Last Updated: December 5, 2025

Beggs, a water supply dam located on Adams Creek in Okmulgee, Oklahoma, was completed in 1922 and stands at a height of 20 feet with a length of 150 feet.


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Summary

Managed by the local government, the dam is regulated by the Oklahoma Water Resources Board and is equipped with a controlled spillway and a single valve outlet gate. With a storage capacity of 88 acre-feet, Beggs serves as a vital water resource for the surrounding community.

Despite its age, Beggs has a low hazard potential and is classified as having a very high risk assessment level, indicating the importance of regular inspections and maintenance. The dam has not been rated for its condition, but it meets state permitting, inspection, and enforcement requirements. While it has not undergone recent modifications, it remains a crucial infrastructure for water supply purposes in the region.

With its historical significance and essential role in water management, Beggs dam stands as a testament to early 20th-century engineering and continues to serve its primary purpose effectively. As climate change impacts water resources, the importance of maintaining and upgrading such structures becomes increasingly critical to ensure the sustainability and resilience of water supplies in the face of changing environmental conditions.

Year Completed

1922

Dam Length

150

Dam Height

20

River Or Stream

ADAMS CREEK

Primary Dam Type

Buttress

Surface Area

17

Hydraulic Height

20

Nid Storage

88

Structural Height

20

Outlet Gates

Valve - 1

Hazard Potential

Low

Nid Height

20
       
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.