Lake Waramaug Dam is a masonry dam located in Litchfield County, Connecticut. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 3 ft3 ft tall and 50 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 Lake Waramaug Dam
The primary purpose of Lake Waramaug Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town of Washington (local government). It impounds the East Aspetuck River.
The dam stands 3 feet tall and stretches 50 feet across, creates a reservoir covering 658 acres, has a maximum storage capacity of 3,290 acre-feet, and collects water from a drainage area of 14 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/13/2024.
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Location
| State | Connecticut |
| County | Litchfield |
| River/Stream | East Aspetuck River |
| Coordinates | 41.68288, -73.35355 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 3 ft |
| Dam Height | 3 ft |
| Dam Length | 50 ft |
Storage & Hydraulics
| NID Storage | 3,290 acre-ft |
| Max Storage | 3,290 acre-ft |
| Normal Storage | 1,974 acre-ft |
| Surface Area | 658 acres |
| Drainage Area | 14 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Washington |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 09/13/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT01650 |
| Federal ID | CT01650 |
| More Info | State Dam Safety Program |