Lancaster Dam Reservoir Report

Last Updated: December 6, 2025

Lancaster Dam, located in Cumberland, Virginia, is a state-regulated structure managed by the Department of Conservation and Recreation.


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Summary

This earth dam stands at a height of 27 feet and serves primarily for irrigation purposes, with recreational activities also being supported. Despite its undetermined hazard potential and not being rated for condition assessment, the dam has a storage capacity of 37 acre-feet and is inspected annually for safety and compliance.

Owned by an unspecified entity, Lancaster Dam has not undergone any significant modifications since its completion. With a spillway type and dimensions not specified, the dam's associated structures and inspection frequency suggest ongoing monitoring and maintenance efforts to ensure its integrity. While emergency action plans and inundation maps are not currently prepared, the dam's risk management measures and risk assessments remain unspecified, leaving room for further evaluation of potential hazards and response protocols.

Overall, Lancaster Dam provides essential irrigation support while offering recreational opportunities in the Cumberland region of Virginia. As a state-regulated structure, it plays a crucial role in water resource management, although its hazard potential and condition assessment status warrant continued attention and potential updates to risk management protocols. With annual inspections and a storage capacity of 37 acre-feet, Lancaster Dam remains an important feature for water resource and climate enthusiasts to monitor in the region.

Dam Height

27

Hydraulic Height

27

Nid Storage

37

Structural Height

27

Hazard Potential

Undetermined

Nid Height

27
       
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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.