Lake Plaza Prop Dam Reservoir Report

Last Updated: December 6, 2025

Lake Plaza Prop Dam, located in Prince William, Virginia, is a privately owned dam regulated by the Department of Conservation and Recreation.


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Summary

Standing at a height of 22 feet, the dam provides a storage capacity of 68.99 acre-feet and covers a surface area of 5.9 acres. Despite its undetermined hazard potential and lack of a condition rating, the dam is subject to regular state inspections, enforcement, and permitting, ensuring its safety and compliance with regulations.

With a primary purpose and dam type unspecified, Lake Plaza Prop Dam remains a significant water resource in the region, contributing to the management of water flow and storage. While details about the dam's construction date and design are absent, its presence plays a crucial role in maintaining water levels and supporting various ecological and recreational activities in the area. The dam's location within Congressional District 01 further underscores its importance in the local water infrastructure.

Although specific information on the dam's operation, modifications, and emergency preparedness is lacking, the continuous state oversight and inspection frequency of once a year indicate a commitment to ensuring the safety and integrity of Lake Plaza Prop Dam. As water resource and climate enthusiasts, understanding the role of dams like Lake Plaza Prop Dam in water management and conservation efforts is essential for promoting sustainable practices and safeguarding our natural environment for future generations.

Dam Height

22

Surface Area

5.9

Hydraulic Height

22

Nid Storage

68.99

Structural Height

22

Hazard Potential

Undetermined

Nid Height

22
       
Seasonal Comparison

Weather Forecast

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.