Jm Stuart Station Ash Pond No. 5 Reservoir Report

Last Updated: December 5, 2025

Jm Stuart Station Ash Pond No.


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Summary

5 is a crucial water resource management structure located in Adams, Ohio. Owned by the Dayton Power & Light Co., this earth dam serves the primary purpose of tailings containment with a storage capacity of 1110 acre-feet. The dam stands at a height of 41 feet and spans 4200 feet in length, overseeing the Ohio River offstream.

Despite its importance, Jm Stuart Station Ash Pond No. 5 is rated as having a significant hazard potential with a poor condition assessment. The last inspection conducted in June 2018 highlighted the need for improvement and maintenance to ensure the structure's integrity and safety. With the Department of Natural Resources overseeing state regulation, it is essential for the dam to undergo regular inspections and necessary upgrades to mitigate risks and protect the surrounding environment and communities.

As water resource and climate enthusiasts, understanding the critical role of structures like Jm Stuart Station Ash Pond No. 5 in managing tailings and ensuring water safety is vital. By staying informed about its condition, regulatory oversight, and potential risks, enthusiasts can advocate for sustainable practices and investments to safeguard water resources and mitigate the impact of climate change on infrastructure like this essential earth dam.

Dam Length

4200

Dam Height

41

River Or Stream

OHIO RIVER - OFFSTREAM

Primary Dam Type

Earth

Surface Area

32

Drainage Area

0.05

Nid Storage

1110

Hazard Potential

Significant

Nid Height

41
       
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.