Spot Pond Dike #5 Reservoir Report
Nearby: Spot Pond Dike #4 Wrights Pond Dam
Last Updated: December 19, 2025
Spot Pond Dike #5 is a vital water resource infrastructure located in Stoneham, Massachusetts.
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Summary
Built in 1880, this earth dam stands at a height of 9 feet and serves the primary purpose of water supply. It holds a significant hazard potential and has a high risk assessment rating, making it crucial for the Department of Conservation and Recreation to ensure its maintenance and safety.
With a storage capacity of 7779 acre-feet and a drainage area of 0.59 square miles, Spot Pond Dike #5 plays a crucial role in managing the water supply for the area. The dam's condition was last assessed in 2013 and deemed satisfactory, but its risk assessment remains high, highlighting the importance of regular inspections and risk management measures to prevent any potential hazards or emergencies.
Despite its age, Spot Pond Dike #5 continues to fulfill its role in providing water supply while facing significant risks. With oversight from the Department of Conservation and Recreation and regular inspections, this historic earth dam remains a critical component of the water infrastructure in Middlesex County, Massachusetts.
Year Completed |
1880 |
Dam Length |
270 |
Dam Height |
9 |
River Or Stream |
SPOT POND BROOK |
Primary Dam Type |
Earth |
Surface Area |
307 |
Hydraulic Height |
8 |
Drainage Area |
0.59 |
Nid Storage |
7779 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |
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.
Spot Pond Dike #5
Pond Lane Arlington