Bristol Reservoir #4 Dam
Bristol Reservoir #4 Dam is an earth dam located in Litchfield County, Connecticut, built in 1906. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Bristol Reservoir #4 Dam
The primary purpose of Bristol Reservoir #4 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 City Of Bristol (local government). It impounds the Poland River near Terryville.
The dam stands 40 feet tall and stretches 970 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 945 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1906, 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 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 10/23/2020.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Connecticut |
| County | Litchfield |
| Nearest City | Terryville |
| River/Stream | Poland River |
| Coordinates | 41.74168, -73.01912 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 970 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 945 acre-ft |
| Max Storage | 945 acre-ft |
| Normal Storage | 807 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 760 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Bristol |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/23/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00364 |
| Federal ID | CT00364 |
| More Info | State Dam Safety Program |