30-Acre Pond Reservoir Report
Nearby: Moss No. 3 Third Dam 30 Acre Pond Dam
Last Updated: December 5, 2025
30-Acre Pond, also known as Moss Mine No.3 Slurry Dam or Middle Fork Slurry Impoundment Dam, is a privately owned Earth dam located in Russell, Virginia.
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Summary
This pond was primarily designed for tailings storage, with a NID storage capacity of 3300 acre-feet and a surface area of 40.2 acres. The dam stands at a height of 300 feet, with a hydraulic height and structural height also measuring 300 feet.
Although the dam is not regulated at the state level, it falls under the jurisdiction of the Mine Safety and Health Administration for regulatory oversight and inspections. The hazard potential of 30-Acre Pond is currently labeled as 'Undetermined', with its condition assessment marked as 'Not Rated'. Despite its impressive size, the dam's risk assessment, emergency action plan, and inundation maps have not been prepared or updated, highlighting potential areas of concern for water resource and climate enthusiasts.
Dam Height |
300 |
Primary Dam Type |
Earth |
Surface Area |
40.2 |
Hydraulic Height |
300 |
Drainage Area |
1.13 |
Nid Storage |
3300 |
Structural Height |
300 |
Hazard Potential |
Undetermined |
Nid Height |
300 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Clinch River At Cleveland
|
386cfs |
Guest River At Coeburn
|
20cfs |
Cranes Nest River Near Clintwood
|
44cfs |
Russell Fork At Haysi
|
467cfs |
Pound River Below Flannagan Dam Near Haysi
|
26cfs |
Russell Fork At Bartlick
|
1060cfs |
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.
30-Acre Pond