Goodwin Dam Reservoir Report

Last Updated: December 5, 2025

Goodwin Dam, also known as Twin Lakes State Park #2, is a state-owned structure located in Prince Edward, Virginia, along the TR-Sandy River.


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Summary

The dam stands at a height of 32 feet with a length of 350 feet and serves primarily for recreational purposes, offering a surface area of 11 acres and a drainage area of 0.55 square miles. Completed in an unspecified year, the dam provides a storage capacity of 212.25 acre-feet, with a normal storage level of 86 feet.

Managed by the Department of Conservation and Recreation in Virginia, Goodwin Dam has a low hazard potential and received a satisfactory condition assessment in January 2017. The dam is subject to regular state regulation, inspection, and enforcement, ensuring its safety and compliance with standards. With its tranquil setting and recreational offerings, Goodwin Dam is a valuable asset for water resource and climate enthusiasts seeking to enjoy outdoor activities in the area surrounding Twin Lakes State Park.

Dam Length

350

Dam Height

32

River Or Stream

TR-SANDY RIVER

Primary Dam Type

Earth

Surface Area

11

Hydraulic Height

32

Drainage Area

0.55

Nid Storage

212.25

Structural Height

32

Hazard Potential

Low

Nid Height

32
       
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.