Tarara Winery Dam Reservoir Report

Last Updated: December 5, 2025

The Tarara Winery Dam in Loudoun, Virginia, is a privately owned structure regulated by the Department of Conservation and Recreation.


°F

°F

mph

Wind

%

Humidity

Summary

This earth dam stands at a height of 60 feet and spans 337 feet in length, with a primary purpose of water supply for the surrounding area. Situated along an unnamed tributary to the Potomac River, the dam provides a storage capacity of 312.6 acre-feet, with a normal storage level of 215.5 acre-feet.

Despite being categorized as "Undetermined" in terms of hazard potential and "Not Rated" in condition assessment, the Tarara Winery Dam plays a crucial role in both recreation and water supply activities. Its location within the Baltimore District and close proximity to Jennifer Wexton's congressional district underscores its significance in the region. While details such as the completion year and inspection dates are not specified, the dam's presence contributes to the overall management of water resources in the area.

As water resource and climate enthusiasts explore the Tarara Winery Dam, they are drawn to its impressive hydraulic height of 60 feet and storage capacity of 312.6 acre-feet. The dam's role in providing water supply and supporting recreational activities adds to its appeal, despite the lack of detailed information on its inspection frequency and condition assessment. With its strategic location in Loudoun, Virginia, and oversight by the Department of Conservation and Recreation, the Tarara Winery Dam stands as a key element in the region's water infrastructure, showcasing the intersection of human ingenuity and natural resources.

Dam Length

337

Dam Height

60

River Or Stream

Un-named tributary to Potomac River.

Primary Dam Type

Earth

Surface Area

9.8

Hydraulic Height

60

Nid Storage

312.6

Structural Height

60

Hazard Potential

Undetermined

Nid Height

60
       
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.