Mianus Filter Plant Dam
High HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | NORTH MIANUS |
| River/Stream | MIANUS RIVER |
| Coordinates | 41.06794, -73.57909 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 130 ft |
| Year Completed | 1875 (151 years old) |
Storage & Hydraulics
| NID Storage | 118 acre-ft |
| Max Storage | 118 acre-ft |
| Normal Storage | 101 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 29 sq mi |
| Max Discharge | 680 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Aquarion Water Company of Connecticut |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/15/2022 |
| Emergency Action Plan | Yes |