Webbers Falls Lock And Dam Reservoir Report

Last Updated: December 6, 2025

Webbers Falls Lock and Dam, located on the Arkansas River in Muskogee, Oklahoma, is a vital infrastructure owned and operated by the US Army Corps of Engineers.


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Summary

Completed in 1970, this gravity dam serves primarily for navigation purposes, with a height of 84 feet and a length of 4370 feet. The dam also has a hydroelectric function and a controlled spillway with a width of 600 feet. With a significant hazard potential, the risk associated with the dam is managed through various measures, including rehabilitation of deteriorated gates, emergency response planning, routine updates to the Emergency Action Plan, and continuous monitoring and inspections to ensure the integrity of the structure.

USACE has classified the risk of Webbers Falls Lock and Dam as low, primarily driven by the potential failure of the spillway gates due to debris impact or a barge strike. While a failure might not lead to a large increase in downstream flooding, immediate impacts would be felt by the towns of Webbers Falls and Gore. To mitigate this risk, USACE is implementing a comprehensive risk management strategy, including ongoing maintenance and rehabilitation efforts, emergency exercises with local responders, and detailed monitoring and inspection programs. These actions aim to enhance the safety and resilience of the dam and reduce the potential impact on the surrounding communities in case of an emergency.

Year Completed

1970

Dam Length

4370

Dam Height

84

River Or Stream

ARKANSAS RIVER

Primary Dam Type

Gravity

Surface Area

11640

Length Of Locks

600

Hydraulic Height

80

Drainage Area

97033

Nid Storage

170100

Structural Height

84

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

84
       
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.