Johnson Dam Reservoir Report
Nearby: Whitefield Dam Colgate Darden Dam
Last Updated: December 5, 2025
Johnson Dam, located in Southampton, Virginia, on the TR-Black Creek, is a privately owned structure primarily used for recreational purposes.
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Summary
The dam, with a height of 13 feet and a length of 730 feet, provides a storage capacity of 463.6 acre-feet. It is regulated by the Department of Conservation and Recreation in Virginia, ensuring that it is inspected, permitted, and enforced to meet safety standards. Despite its undetermined hazard potential and unrated condition assessment, Johnson Dam remains a crucial element in the water resource management of the region.
Situated within the Wilmington District of the US Army Corps of Engineers, Johnson Dam offers a tranquil retreat for water and climate enthusiasts. Although the dam's specific year of completion is unknown, its presence has significantly contributed to the local ecosystem by providing a valuable water storage resource. The dam's location, surrounded by the natural beauty of Southampton County, makes it an ideal spot for outdoor activities and wildlife observation. With its regulated status and state jurisdiction, Johnson Dam stands as a testament to the careful balance between water conservation and recreational enjoyment.
For those interested in the intersection of water resource management and climate impact, Johnson Dam represents a fascinating case study. Despite its modest size and recreational focus, the dam plays a vital role in flood control, water storage, and ecosystem support in the region. By understanding the regulatory framework and maintenance practices in place for Johnson Dam, enthusiasts can gain insight into the complexities of managing water resources while promoting sustainable recreation. As climate change continues to influence water availability and quality, structures like Johnson Dam will become increasingly important in ensuring the resilience of local communities and ecosystems.
Dam Length |
730 |
Dam Height |
13 |
River Or Stream |
TR-BLACK CREEK |
Primary Dam Type |
Earth |
Nid Storage |
463.6 |
Hazard Potential |
Undetermined |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blackwater River Near Franklin
|
242cfs |
Nottoway River Near Sebrell
|
396cfs |
Blackwater River Near Dendron
|
137cfs |
Nottoway River Near Stony Creek
|
302cfs |
Potecasi Creek Near Union
|
24cfs |
Meherrin River At Emporia
|
327cfs |
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.
Johnson Dam
Blackwater Ecological State Natural Area Preserve
Cypress Bridge State Natural Area Preserve
Chub Sandhill State Natural Area Preserve