Volvo Hagerstown Swm Reservoir Report
Last Updated: December 24, 2025
Volvo Hagerstown Swm is a private flood risk reduction structure located in Kaplan University, Hagerstown, Maryland.
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Summary
Built in 1961, this earth dam stands at 6.5 feet high with a hydraulic height of 10 feet, designed to mitigate flooding along the Antietam Creek-TR. Despite its critical purpose, the dam's condition assessment is deemed poor, with a significant hazard potential, prompting concerns over its structural integrity.
The dam's storage capacity is 48 acre-feet, serving a drainage area of 0.41 square miles. With a spillway type of uncontrolled and needle outlet gates, the structure has a surface area of 0.27 acres. Despite its moderate risk assessment rating, the dam's maintenance and inspection frequency is crucial, with the last assessment conducted in September 2021. The dam's emergency action plan and risk management measures are areas that require attention to ensure the safety and functionality of Volvo Hagerstown Swm for flood risk reduction.
For water resource and climate enthusiasts, Volvo Hagerstown Swm presents a case study in the maintenance and management of aging flood control infrastructure. With a history dating back to the 1960s, this earth dam in Maryland faces challenges in ensuring its continued effectiveness in mitigating flood risks along the Antietam Creek-TR. The dam's poor condition assessment and significant hazard potential underscore the importance of regular inspections and maintenance to address potential safety concerns and protect surrounding communities from flooding events. Continued monitoring and investment in risk management measures are crucial to safeguarding the dam's functionality and resilience in the face of changing climate conditions and increasing water resource challenges.
Year Completed |
1961 |
Dam Length |
253 |
Dam Height |
6.5 |
River Or Stream |
Antietam Creek-TR |
Primary Dam Type |
Earth |
Surface Area |
0.27 |
Hydraulic Height |
10 |
Drainage Area |
0.41 |
Nid Storage |
48 |
Outlet Gates |
Needle - 0 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Conococheague Creek At Fairview
|
208cfs |
Antietam Creek Near Waynesboro
|
32cfs |
Marsh Run At Grimes
|
5cfs |
Antietam Creek Near Sharpsburg
|
93cfs |
Potomac River At Shepherdstown
|
2090cfs |
Catoctin Creek Near Middletown
|
12cfs |
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.
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Volvo Hagerstown Swm