Neponset River Dam - Lower Mills

Suffolk County, Massachusetts (near Milton)

River/Stream: Neponset River

Significant Hazard

Failure could cause economic loss or disruption

Key Facts

Dam Type
Concrete
Height
15 ft
Dam Length
115 ft
Reservoir Storage
250 acre-ft
Year Completed
—
Primary Purpose
Flood Risk Reduction
Owner Type
State
Max Discharge
5,300 cfs

Condition Assessment

PoorLast inspected: 2021-03-18

Hazard Classification: Significant — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Poor — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
MA01093
State
Massachusetts (MA)
Coordinates
42.27074, -71.06881

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.