Hasen Pond Dam is a masonry dam located in Fairfield County, Connecticut. It carries a Significant hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 60 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Hasen Pond Dam
The primary purpose of Hasen Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Colin (private). It impounds the Saugaruck River.
The dam stands 12 feet tall and stretches 60 feet across, creates a reservoir covering 8 acres, and collects water from a drainage area of 41 square miles.
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. The most recent inspection on record was 02/19/2025.
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Location
| State | Connecticut |
| County | Fairfield |
| River/Stream | Saugaruck River |
| Coordinates | 41.19855, -73.35349 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 60 ft |
Storage & Hydraulics
| Surface Area | 8 acres |
| Drainage Area | 41 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Colin |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 02/19/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT01429 |
| Federal ID | CT01429 |
| More Info | State Dam Safety Program |