Goodwyn Lake Dam Reservoir Report
Nearby: Malone Dam Ranson Dam
Last Updated: December 6, 2025
Goodwyn Lake Dam, located in Powhatan, Virginia, is a state-regulated structure managed by the Department of Conservation and Recreation.
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Summary
This dam, situated on Branch Creek, stands at a height of 22 feet and has a storage capacity of 434 acre-feet. While the primary purpose of the dam is not specified, it serves as a vital water resource for the surrounding area.
Despite being classified as "Undetermined" in terms of hazard potential and "Not Rated" in condition assessment, Goodwyn Lake Dam undergoes regular inspections with a frequency of one per year. The dam's Emergency Action Plan status and risk assessment details are currently not available. With a strong regulatory framework in place, including permitting, inspection, and enforcement by state agencies, the dam plays a crucial role in water resource management in the region, though further information on its design, construction, and operation is needed to fully assess its impact on the local climate and environment.
As an integral part of the water infrastructure in Virginia, Goodwyn Lake Dam's significance extends beyond its physical attributes. Its location within the Norfolk District of the US Army Corps of Engineers highlights its importance in flood control and water supply management. With Abigail Davis Spanberger serving as the representative for the congressional district, there is a clear link between the dam's operations and federal oversight. As water resource and climate enthusiasts delve deeper into the data surrounding Goodwyn Lake Dam, there is a wealth of information to uncover about its history, purpose, and role in sustaining the region's ecological balance.
Dam Height |
22 |
River Or Stream |
Branch Creek |
Hydraulic Height |
22 |
Nid Storage |
434 |
Structural Height |
22 |
Hazard Potential |
Undetermined |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Fine Creek At Fine Creek Mills
|
3cfs |
Appomattox River At Mattoax
|
309cfs |
James River At Cartersville
|
2090cfs |
James River And Kanawha Canal Near Richmond
|
131cfs |
Deep Creek Near Mannboro
|
96cfs |
James River Near Richmond
|
1810cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Goodwyn Lake Dam
Mill Mount Trail Powhatan County