Maynard Branch Slurry Impoundment Reservoir Report

Last Updated: December 11, 2025

Maynard Branch Slurry Impoundment is a private structure located in East Lynn, West Virginia, with a primary purpose of storing tailings.


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Summary

This earth dam stands at a height of 262 feet and has a storage capacity of 12,630 acre-feet. While not state-regulated, it falls under the jurisdiction of the Mine Safety and Health Administration for inspection and enforcement. The impoundment is considered to have a high hazard potential, although detailed condition assessments are not currently available.

Despite lacking recent inspection data and comprehensive risk assessments, the Maynard Branch Slurry Impoundment presents an intriguing case study for water resource and climate enthusiasts. The dam's significant height and storage capacity may raise concerns about safety and environmental impact, particularly given its location in Wayne County. As this structure remains unregulated by the state, there is an opportunity for further research and analysis to better understand the potential risks and management measures associated with this impoundment.

For those interested in the intersection of water resources, climate, and industrial infrastructure, the Maynard Branch Slurry Impoundment offers a compelling subject for investigation. With its high hazard potential and private ownership, this structure poses questions about regulatory oversight, emergency preparedness, and environmental stewardship. By delving into the details of this earth dam and its operational history, enthusiasts can gain valuable insights into the complexities of managing water resources in a changing climate.

Dam Length

1165

Dam Height

262

Primary Dam Type

Earth

Nid Storage

12630

Hazard Potential

High

Nid Height

262
       
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.