Millstone Branch Slurry Impoundment No.2 Reservoir Report
Last Updated: December 5, 2025
Millstone Branch Slurry Impoundment No.2 in Nolan, WV, is a private earth dam structure primarily used for tailings storage.
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Summary
With a dam height of 200 feet and a storage capacity of 636 acre-feet, this impoundment poses a high hazard potential. Located in Pike County, Kentucky, this facility falls under the jurisdiction of the Mine Safety and Health Administration for regulation and inspection.
Despite being privately owned and not state-regulated, the Millstone Branch Slurry Impoundment No.2 is a significant structure in the region, with a maximum storage capacity of 636 acre-feet. The dam, completed in an unknown year, presents a potential risk due to its high hazard potential and the lack of available condition assessment data. Given its location and size, monitoring and maintenance of this impoundment are crucial for mitigating any potential hazards to the surrounding environment and communities.
Dam Length |
600 |
Dam Height |
200 |
Primary Dam Type |
Earth |
Nid Storage |
636 |
Hazard Potential |
High |
Nid Height |
200 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tug Fork At Williamson
|
365cfs |
Tug Fork At Kermit
|
492cfs |
Johns Creek Near Meta
|
21cfs |
Levisa Fork At Pikeville
|
1460cfs |
Grapevine Creek Near Phyllis
|
5cfs |
East Fork Twelvepole Creek Near Dunlow
|
24cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Millstone Branch Slurry Impoundment No.2