Great Brook Reservoir Dam
Great Brook Reservoir Dam is an earth dam located in New Haven County, Connecticut, built in 1925. It carries a Significant hazard potential classification.
About Great Brook Reservoir Dam
The primary purpose of Great Brook Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Waterbury (local government). It impounds the Great Brook near Waterbury.
The dam stands 12 feet tall and stretches 423 feet across, creates a reservoir covering 63 acres, has a maximum storage capacity of 598 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1925, 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. An emergency action plan is in place for this dam.
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Location
| State | Connecticut |
| County | New Haven |
| Nearest City | Waterbury |
| River/Stream | Great Brook |
| Coordinates | 41.57641, -73.02126 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 423 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 598 acre-ft |
| Max Storage | 598 acre-ft |
| Normal Storage | 283 acre-ft |
| Surface Area | 63 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 140 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Waterbury |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00641 |
| Federal ID | CT00641 |
| More Info | State Dam Safety Program |