Sporn Bottom Ash Dam Reservoir Report

Last Updated: December 6, 2025

Sporn Bottom Ash Dam in New Haven, West Virginia, stands as a crucial structure managed by a public utility, with its primary purpose being tailings storage.


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Summary

This dam, regulated by the state agency DWWM, boasts a significant hazard potential and a satisfactory condition assessment as of March 2009. With a height of 42 feet and a storage capacity of 279 acre-feet, it serves as a vital component for managing and storing ash residues.

Located along the Ohio River, Sporn Bottom Ash Dam plays a critical role in protecting the environment and water resources in Mason County. The dam, with a surface area of 9.51 acres, has been inspected regularly, with the last assessment conducted in September 2011. The dam's emergency action plan was last revised in October 2017, ensuring that all necessary measures are in place to address any potential risks or emergencies that may arise.

As a key infrastructure for the region, Sporn Bottom Ash Dam not only serves its primary purpose of tailings storage but also plays a vital role in flood control and environmental protection. With its history dating back to its completion date, the dam continues to be a crucial asset for the community, warranting regular inspections and adherence to regulatory guidelines to ensure its continued safe operation for the benefit of all stakeholders involved.

Dam Length

2500

Dam Height

42

River Or Stream

OHIO

Primary Dam Type

Other

Surface Area

9.51

Nid Storage

279

Hazard Potential

Significant

Nid Height

42
       
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.