Mianus Filter Plant Dam

Fairfield County, Connecticut (near NORTH MIANUS)

River/Stream: MIANUS RIVER

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Masonry
Height
31 ft
Dam Length
130 ft
Reservoir Storage
118 acre-ft
Year Completed
1875
Primary Purpose
Water Supply
Owner Type
Public Utility
Max Discharge
680 cfs

Condition Assessment

FairLast inspected: 2022-09-15

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

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

Location

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Quick Stats

NID ID
CT00040
State
Connecticut (CT)
Coordinates
41.06794, -73.57909
Age
151 years

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.