Cobbs Dam Reservoir Report
Nearby: Carmon Bennett Dam Walker Dam
Last Updated: December 6, 2025
Cobbs Dam, located in Franklin, Virginia, is a private earth dam with a height of 30 feet and a storage capacity of 60.72 acre-feet.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, completed in an unspecified year, serves an important regulatory function as it is under state jurisdiction and regulation by the Department of Conservation and Recreation. Despite its undetermined hazard potential and lack of a formal condition assessment, Cobbs Dam has not been rated for its current condition.
Although specific details regarding the dam's purposes and modifications are not provided, Cobbs Dam stands as a vital water resource structure in the region. With a normal storage capacity of 38 acre-feet and a surface area of 3.8 acres, the dam plays a crucial role in managing water levels and ensuring the safety of surrounding areas. As an earth dam, Cobbs Dam represents a significant piece of infrastructure that water resource and climate enthusiasts can appreciate for its contribution to water management and regulation in Virginia.
Dam Length |
275 |
Dam Height |
30 |
Primary Dam Type |
Earth |
Surface Area |
3.8 |
Hydraulic Height |
30 |
Nid Storage |
60.72 |
Structural Height |
30 |
Hazard Potential |
Undetermined |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blackwater River Near Rocky Mount
|
56cfs |
Pigg River Near Sandy Level
|
112cfs |
Smith River At Bassett
|
101cfs |
Smith River Near Philpott
|
76cfs |
Smith River At Martinsville
|
149cfs |
Sandy River Near Danville
|
41cfs |
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.
Cobbs Dam