Hoadley Pond Dam
Hoadley Pond Dam is a masonry dam located in New Haven County, Connecticut, built in 1873. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Hoadley Pond Dam
The primary purpose of Hoadley Pond Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Aquarion Water Company Of Connecticut (public utility). It impounds the Little River near Seymour.
The dam stands 19 feet tall and stretches 145 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1873, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/15/2024.
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Location
| State | Connecticut |
| County | New Haven |
| Nearest City | Seymour |
| River/Stream | Little River |
| Coordinates | 41.39690, -73.08558 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 145 ft |
| Year Completed | 1873 (153 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 2,300 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Aquarion Water Company of Connecticut |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/15/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00090 |
| Federal ID | CT00090 |
| More Info | State Dam Safety Program |