The Ridings At Blue Spring Dam Reservoir Report

Last Updated: December 5, 2025

The Ridings At Blue Spring Dam in Loudoun, Virginia, is a privately owned structure designed for flood risk reduction along the Cub Run tributary.


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Summary

Standing at 11 feet tall and with a length of 280 feet, this earth dam plays a crucial role in mitigating potential flooding in the area. Managed by the Department of Conservation and Recreation, the dam is regulated, inspected, and enforced by state authorities to ensure its effectiveness in protecting the surrounding community.

With a storage capacity of 59.9 acre-feet and a normal storage of 7.5 acre-feet, The Ridings At Blue Spring Dam provides essential flood control measures for the region. Despite being classified as having an undetermined hazard potential and not rated in terms of condition assessment, the dam's presence offers a sense of security for residents in the face of potential water resource challenges. Its location within the Baltimore District and the oversight provided by state agencies highlight the collaborative efforts involved in managing water resources and climate-related risks in the area.

As water resource and climate enthusiasts, understanding the significance of structures like The Ridings At Blue Spring Dam sheds light on the intricate network of infrastructure dedicated to safeguarding communities against natural disasters. The dam's role in flood risk reduction, its state-regulated status, and its strategic design underscore the importance of proactive measures in water management to ensure the resilience of our environment in the face of changing climate patterns.

Dam Length

280

Dam Height

11

River Or Stream

Cub Run tributary

Primary Dam Type

Earth

Surface Area

10.7

Hydraulic Height

11

Nid Storage

59.9

Structural Height

11

Hazard Potential

Undetermined

Nid Height

11
       
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.