Johnson Dam Reservoir Report
Last Updated: February 22, 2026
Johnson Dam in Rockingham, Virginia, is a private dam primarily used for recreation purposes.
Summary
Standing at 18 feet tall, the earth dam provides a storage capacity of 57 acre-feet, making it a vital water resource in the area. Although the dam's hazard potential is undetermined and its condition is not currently rated, it is subject to state regulation and inspection by the Department of Conservation and Recreation in Virginia.
Located within Congressional District 06, Virginia, Johnson Dam serves as a key recreational spot for water enthusiasts and climate activists alike. While specific details on the dam's construction year and modifications remain unknown, its presence contributes to the conservation and management of water resources in the region. With a focus on safety and emergency preparedness, the dam's emergency action plan status and risk assessment measures are yet to be fully determined, highlighting the importance of ongoing monitoring and oversight for sustainable water management practices.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Dam Height |
18 |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
57 |
Structural Height |
18 |
Hazard Potential |
Undetermined |
Nid Height |
18 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Linville Creek At Broadway
|
59cfs |
N F Shenandoah River At Cootes Store
|
1530cfs |
Muddy Creek At Mount Clinton
|
7cfs |
North River Near Burketown
|
1610cfs |
Smith Creek Near New Market
|
150cfs |
S F Shenandoah River Near Lynnwood
|
2760cfs |
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