Jmu Amphitheatre Dam Reservoir Report
Nearby: Newman Lake Dam Lake Shenandoah Dam
Last Updated: December 5, 2025
The Jmu Amphitheatre Dam, located in Harrisonburg, Virginia, is a state-regulated structure managed by the Department of Conservation and Recreation.
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Summary
Standing at a height of 27 feet, this Earth-type dam serves primarily for flood risk reduction, with a storage capacity of 135 acre-feet. Despite its undetermined hazard potential and lack of a condition assessment rating, the dam is regularly inspected by the state and is equipped with emergency action plans to ensure public safety in case of any potential risks or incidents.
Surrounded by the scenic beauty of the Harrisonburg area, the Jmu Amphitheatre Dam plays a crucial role in managing water resources and protecting the local community from flooding events. Although the exact year of its completion is unknown, the dam continues to serve its purpose effectively, with state enforcement, permitting, and inspection processes in place to uphold its structural integrity and safety standards. With a strong emphasis on flood risk reduction, this state-owned structure exemplifies the importance of proactive water resource management in mitigating potential disasters.
For water resource and climate enthusiasts, the Jmu Amphitheatre Dam represents a key infrastructure for flood control in the region, supported by state jurisdiction and regulatory oversight. With a focus on public safety and risk management, this Earth-type dam stands as a testament to the collaborative efforts of various agencies in safeguarding communities from natural hazards. As efforts to assess and improve the dam's condition continue, its role in water resource management and climate resilience remains essential for the sustainable development of Harrisonburg and the surrounding areas.
Dam Height |
27 |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
135 |
Structural Height |
27 |
Hazard Potential |
Undetermined |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Jmu Amphitheatre Dam