Arlington Mill Res Evergreen Dike Reservoir Report
Last Updated: December 16, 2025
The Arlington Mill Reservoir Evergreen Dike, also known as the East Dike, is a key water resource infrastructure located in Salem, New Hampshire.
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Summary
Built in 1922, this earth dam stands at a height of 31 feet and spans 500 feet in length, serving primarily as a water supply facility. With a storage capacity of 5,680 acre-feet and a drainage area of 20.81 square miles, this structure plays a crucial role in managing water resources in the region.
Managed by the NHDES Dam Bureau and regulated by the state of New Hampshire, the Arlington Mill Reservoir Evergreen Dike is inspected regularly to ensure its structural integrity. Despite being classified as having a significant hazard potential, the dam is assessed to be in fair condition. In case of emergencies, the risk assessment for this dam is moderate, highlighting the importance of preparedness and risk management measures. As a significant piece of infrastructure in the area, the Arlington Mill Reservoir Evergreen Dike serves as a critical component in water resource management and climate resilience efforts.
Climate enthusiasts and water resource experts can appreciate the historical significance and functional importance of the Arlington Mill Reservoir Evergreen Dike in maintaining a reliable water supply for the region. With its controlled spillway and adequate storage capacity, this earth dam plays a vital role in managing water flow and mitigating flood risks along the Spickett River. As efforts continue to monitor and assess the condition of this dam, it remains a key asset in ensuring water security and resilience in Salem, New Hampshire, and beyond.
Year Completed |
1922 |
Dam Length |
500 |
Dam Height |
31 |
River Or Stream |
SPICKETT RIVER |
Primary Dam Type |
Earth |
Surface Area |
320 |
Drainage Area |
20.81 |
Nid Storage |
5680 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
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.
Arlington Mill Res Evergreen Dike
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