Muskingum River Lock And Dam No. 5 Reservoir Report

Last Updated: December 5, 2025

Muskingum River Lock and Dam No.


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Summary

5, also known as Swift's No. 5, is a state-owned structure located in Washington County, Ohio along the Muskingum River. Built in 1841 by the U.S. Army Corps of Engineers, this timber crib dam stands at a height of 19.7 feet and has a dam length of 546 feet. The dam serves primarily for recreation purposes, providing a surface area of 328 acres and a maximum storage capacity of 2525 acre-feet.

Despite its historical significance and recreational value, Muskingum River Lock and Dam No. 5 faces challenges in terms of its condition assessment, which has been rated as poor. The hazard potential associated with the dam is classified as significant, highlighting the need for regular inspections and maintenance. The last inspection conducted in October 2018 revealed the dam's deteriorating state, prompting concerns about its long-term stability and safety.

Given its role in regulating the flow of the Muskingum River and providing recreational opportunities, the future of Muskingum River Lock and Dam No. 5 hinges on addressing its maintenance needs and ensuring it meets safety standards. With state regulatory oversight from the Department of Natural Resources, efforts to improve the dam's condition and reduce its hazard potential are essential to preserving this important water resource for both local communities and the environment.

Year Completed

1841

Dam Length

546

Dam Height

19.7

River Or Stream

MUSKINGUM RIVER

Primary Dam Type

Timber Crib

Surface Area

328

Drainage Area

7590

Nid Storage

2525

Hazard Potential

Significant

Nid Height

20
       
Seasonal Comparison

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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.