B. Vann Dam Reservoir Report
Nearby: House-Autry Dam Charles Naylor Dam
Last Updated: December 5, 2025
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Summary
Vann Dam, located in Sampson, North Carolina, is a private earth dam primarily used for recreation purposes. This dam stands at a structural height of 20.2 feet with a hydraulic height of 16.8 feet, providing a maximum storage capacity of 37.98 acre-feet. The dam overlooks the Sevenmile Swamp-Trib and covers a surface area of 4.7 acres with a drainage area of 66.6 square miles, making it a vital water resource in the region.
Despite its recreational purpose, B. Vann Dam has a high hazard potential, emphasizing the importance of regular inspections and maintenance. The last inspection conducted in December 2020 rated the dam's condition as "Not Rated," suggesting a need for further assessment. With no state regulation or permitting in place, it is crucial for private owners to take responsibility for the upkeep and safety of this water structure to prevent any potential risks or emergencies.
While B. Vann Dam does not fall under the jurisdiction of federal agencies or the US Army Corps of Engineers, its location and purpose make it a significant asset for water enthusiasts and climate advocates in the area. This dam serves not only as a recreational spot but also as a reminder of the importance of proper management and maintenance of water resources to ensure safety and sustainability for future generations.
Dam Length |
255 |
River Or Stream |
Sevenmile Swamp- Trib |
Primary Dam Type |
Earth |
Surface Area |
4.7 |
Hydraulic Height |
16.8 |
Drainage Area |
66.6 |
Nid Storage |
37.98 |
Structural Height |
20.2 |
Hazard Potential |
High |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Neuse River Near Goldsboro
|
1460cfs |
Little River Near Princeton
|
84cfs |
Cape Fear River At Lillington
|
711cfs |
Middle Creek Near Clayton
|
54cfs |
Black River Near Tomahawk
|
668cfs |
Neuse River Near Clayton
|
384cfs |
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.
B. Vann Dam