Lake Monroe Dam Reservoir Report

Last Updated: December 5, 2025

Lake Monroe Dam, located in King George, Virginia, is a privately owned earth dam primarily built for recreational purposes on the TR-Keys Run river.


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Summary

Standing at a height of 40.8 feet with a storage capacity of 607 acre-feet, this dam plays a crucial role in regulating water levels in the area. However, recent data indicates that the dam is classified as having a high hazard potential and an unsatisfactory condition assessment, raising concerns among water resource and climate enthusiasts.

Despite being under the regulatory oversight of the Department of Conservation and Recreation in Virginia, the dam's last inspection in November 2021 revealed its deteriorating state. With a history of modifications and a lack of updated emergency action plans, Lake Monroe Dam poses a potential risk to the surrounding community in case of a failure. As climate change continues to impact water resources, the importance of maintaining and upgrading infrastructure like Lake Monroe Dam becomes increasingly vital to ensure the safety and resilience of the area.

As water resource and climate enthusiasts advocate for sustainable practices and infrastructure improvements, Lake Monroe Dam serves as a focal point for discussions on the importance of dam safety and maintenance in the face of changing environmental conditions. With its high hazard potential and unsatisfactory condition assessment, stakeholders must work together to address the risks posed by this vital structure and implement necessary measures to safeguard the local community and ecosystem from potential disasters.

Dam Length

386

Dam Height

40.8

River Or Stream

TR-KEYS RUN

Primary Dam Type

Earth

Surface Area

25.6

Hydraulic Height

40.8

Drainage Area

0.52

Nid Storage

607

Structural Height

40.8

Hazard Potential

High

Nid Height

41
       
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.