Tetram Pond Dam is an earth dam located in Middlesex County, Connecticut, built in 1923. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 15 ft15 ft tall and 280 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Tetram Pond Dam
The primary purpose of Tetram Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hammonassett Fishing Association (private). It impounds the Bunker Hill Brook near Killingworth.
The dam stands 15 feet tall and stretches 280 feet across, creates a reservoir covering 19 acres, has a storage capacity of 113 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1923, the structure is over a century old.
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 12/31/2015. That was over 10 years ago.
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Location
| State | Connecticut |
| County | Middlesex |
| Nearest City | Killingworth |
| River/Stream | Bunker Hill Brook |
| Coordinates | 41.41368, -72.62950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 280 ft |
| Year Completed | 1923 (103 years old) |
Storage & Hydraulics
| NID Storage | 113 acre-ft |
| Normal Storage | 113 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 339 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Hammonassett Fishing Association |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/31/2015 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00402 |
| Federal ID | CT00402 |
| More Info | State Dam Safety Program |