Spot Pond Dike #4 Reservoir Report
Nearby: Spot Pond Dike #5 Wrights Pond Dam
Last Updated: December 19, 2025
Spot Pond Dike #4, located in Stoneham, Massachusetts, is a critical earth dam built in 1880 for water supply purposes.
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Summary
This dam, standing at a height of 9 feet with a hydraulic height of 8 feet, plays a significant role in managing the water resources of the area. With a storage capacity of 7779 acre-feet and a drainage area of 0.59 square miles, this dam serves as a crucial infrastructure for water management in Middlesex County.
Managed by the Massachusetts Department of Conservation and Recreation, Spot Pond Dike #4 has a satisfactory condition assessment as of May 2013, indicating its structural integrity and operational efficiency. Despite its age, the dam continues to meet state regulations for inspection, permitting, and enforcement, ensuring the safety and security of the surrounding community in the event of a water-related emergency. With a high risk assessment rating, it is essential for stakeholders and water resource enthusiasts to monitor and maintain this dam to mitigate potential hazards and safeguard the local water supply.
Spot Pond Dike #4 stands as a historical yet functional water management structure, embodying the intersection of engineering excellence and environmental stewardship. With a significant hazard potential and a risk assessment rating of 2 (high), this dam serves as a reminder of the importance of proactive maintenance and risk management in the face of changing climate patterns and water resource challenges. As climate enthusiasts and water resource advocates, it is crucial to monitor and support the ongoing efforts to ensure the resilience and sustainability of this vital infrastructure for future generations.
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 #4
Pond Lane Arlington