Number 1 Impoundment Reservoir Report
Nearby: Silica Dam Feldspar Corp. Dam #2
Last Updated: December 22, 2025
Number 1 Impoundment in Hanover, Virginia, is a significant water resource managed by the Mine Safety and Health Administration for an unspecified purpose.
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Summary
This earth dam structure stands at a height of 10 feet and stretches for 780 feet, with a storage capacity of 173.28 acre-feet and a surface area of 21.66 acres. Located in the Norfolk District, this impoundment plays a crucial role in water management in the region, although its hazard potential and condition assessment remain undetermined and not rated, respectively.
Despite lacking specific details on its primary purpose and dam type, Number 1 Impoundment serves as an essential water storage facility in Hanover, Virginia. With no state jurisdiction or regulatory agency overseeing its operations, the dam's last inspection date and condition assessment are currently unknown. While the dam's emergency action plan status and risk assessment are also undetermined, its significance in managing water resources in the area cannot be understated, making it a focal point for water resource and climate enthusiasts interested in the region's hydrological landscape.
As water resource and climate enthusiasts delve into the intricacies of Number 1 Impoundment, they can explore its structural dimensions, storage capacity, and role in water management within Hanover, Virginia. While the dam's hazard potential and condition assessment are yet to be determined, its presence as a vital water infrastructure underscores the importance of sustainable water resource management in the region. With its proximity to the Norfolk District and under the purview of the Mine Safety and Health Administration, this impoundment offers a fascinating case study of water resource management practices in Virginia.
Dam Length |
780 |
Dam Height |
10 |
Surface Area |
21.66 |
Hydraulic Height |
10 |
Nid Storage |
173.28 |
Structural Height |
10 |
Hazard Potential |
Undetermined |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Number 1 Impoundment