Waltonian Dam Reservoir Report

Last Updated: December 5, 2025

Waltonian Dam, also known as Izaac Walton League Dam, is a privately owned structure located in Loudoun, Virginia.


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Summary

Managed by the Department of Conservation and Recreation, this dam sits on the TR-North Fork Goose Creek and serves primarily for recreation purposes. Standing at a height of 37.1 feet with a length of 300 feet, the dam has a storage capacity of 87 acre-feet and covers a surface area of 5 acres.

With a low hazard potential and a condition assessment that has not been rated, Waltonian Dam is regulated, permitted, inspected, and enforced by the state of Virginia. Despite not being classified as a USACE structure, this earth-type dam plays a key role in providing recreational opportunities while also contributing to the overall water resource management in the region. Its last inspection in March 2017 indicated that the dam is in good condition, reinforcing its importance in the local landscape.

Located within the Baltimore District, Waltonian Dam stands as a testament to the balance between human recreation and environmental conservation. As a popular spot for outdoor activities, this dam not only enhances the quality of life for local residents but also showcases the importance of sustainable water resource management in the face of a changing climate. With its serene surroundings and vital role in the community, Waltonian Dam is a symbol of harmony between human development and nature preservation.

Dam Length

300

Dam Height

37.1

River Or Stream

TR-North Fork Goose Creek

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

37.1

Drainage Area

0.18

Nid Storage

87

Structural Height

37.1

Hazard Potential

Low

Nid Height

37
       
Seasonal Comparison

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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.