Montgomery Point Lock And Dam Reservoir Report

Last Updated: December 5, 2025

Montgomery Point Lock and Dam, located in Desha County, Arkansas, is a federal structure managed by the US Army Corps of Engineers for navigation purposes on the White River.


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Summary

Completed in 2004, this concrete dam stands at a height of 55 feet and has a length of 843 feet. With a maximum storage capacity of 10,595 acre-feet and a normal storage of 7,452 acre-feet, the dam plays a crucial role in managing water levels for the surrounding area.

Despite its significant hazard potential, the dam is continuously monitored and maintained by the USACE to mitigate flood risks and ensure structural integrity. The agency works closely with local emergency managers and the public to raise awareness, develop emergency action plans, and conduct regular inspections. With a spillway width of 500 feet and a controlled spillway type, the dam is equipped to release water as needed to prevent overflow and protect downstream areas. Overall, Montgomery Point Lock and Dam serves as a vital component in the regional water resource management system, safeguarding against potential flooding events and supporting navigation activities along the White River.

Year Completed

2004

Dam Length

843

Dam Height

14

River Or Stream

WHITE

Primary Dam Type

Concrete

Surface Area

613

Length Of Locks

600

Hydraulic Height

27

Drainage Area

27818

Nid Storage

10595

Structural Height

55

Hazard Potential

Significant

Foundations

Soil

Nid Height

55
       
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.