Middleton Pond Outlet Dam Reservoir Report
Nearby: Emerson Brook Dam Mill Pond Dam
Last Updated: December 16, 2025
Middleton Pond Outlet Dam, situated in Middleton, Massachusetts, plays a vital role in water supply management as a local government-owned structure regulated by the Department of Conservation and Recreation.
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Summary
Built in 1900, this earth dam stands at a height of 11 feet and has a storage capacity of 1300 acre-feet, serving the primary purpose of water supply. The dam also serves as a barrier for a tributary of the Ipswich River, with a drainage area of 2.79 square miles.
Despite its age, Middleton Pond Outlet Dam maintains a fair condition assessment, posing a low hazard potential with a moderate risk rating. The dam features an uncontrolled spillway type and has a surface area of 0.21 square miles. While the last inspection was conducted in April 2009, the dam has a designated inspection frequency of 10 years. With its historical significance and importance in water resource management, Middleton Pond Outlet Dam stands as a critical infrastructure contributing to the sustainability of the surrounding area's water supply.
Year Completed |
1900 |
Dam Length |
600 |
Dam Height |
11 |
River Or Stream |
TRIBUTARY OF IPSWICH RIVER |
Primary Dam Type |
Earth |
Surface Area |
0.21 |
Hydraulic Height |
9 |
Drainage Area |
2.79 |
Nid Storage |
1300 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
11 |
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.
Middleton Pond Outlet Dam
Boxford Road 41-43, Ipswich