Old Stone Mill Dam Reservoir Report
Last Updated: December 7, 2025
The Old Stone Mill Dam, located in Pittsylvania, Virginia, is a historic masonry dam standing at 23 feet in height, with a storage capacity of 64 acre-feet.
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Summary
This dam, constructed on a tributary to the Roanoke River, serves a primary purpose that is classified as 'Other,' with no specific designation provided for its original completion year. Despite its age and undetermined hazard potential, the dam remains under state regulation and jurisdiction, with the Department of Conservation and Recreation responsible for permitting, inspection, and enforcement.
Owned privately, the Old Stone Mill Dam is not associated with any federal agencies in terms of funding, design, construction, regulation, or operation. The dam's condition assessment is marked as 'Not Rated,' indicating a lack of recent evaluation of its structural integrity and safety. While the risk assessment, emergency action plan, and inundation maps are currently unavailable, the dam's risk management measures and compliance with guidelines remain unspecified, leaving its resilience to potential hazards uncertain.
Water resource and climate enthusiasts intrigued by the Old Stone Mill Dam's historical significance and structural details may find the lack of comprehensive data on its current condition and risk management measures concerning. With its location in a picturesque setting and ties to the region's water management history, this masonry dam presents an opportunity for further exploration and assessment to ensure its continued safety and preservation in the face of evolving environmental challenges.
Dam Length |
160 |
Dam Height |
23 |
River Or Stream |
Trib. to Roanoke River |
Primary Dam Type |
Masonry |
Surface Area |
7 |
Hydraulic Height |
23 |
Nid Storage |
64 |
Structural Height |
23 |
Hazard Potential |
Undetermined |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Roanoke River At Altavista
|
618cfs |
Big Otter River Near Evington
|
101cfs |
Goose Creek Near Huddleston
|
58cfs |
Falling River Near Naruna
|
59cfs |
Roanoke (Staunton) River At Brookneal
|
906cfs |
Pigg River Near Sandy Level
|
112cfs |
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.
Old Stone Mill Dam