Hopeville Pond Dam
Hopeville Pond Dam is an earth dam located in New London County, Connecticut, built in 1910. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Hopeville Pond Dam
The primary purpose of Hopeville Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Connecticut Deep (state). It impounds the Pachaug River near Jewett City.
The dam stands 18 feet tall and stretches 385 feet across, creates a reservoir covering 122 acres, has a maximum storage capacity of 1,200 acre-feet, and collects water from a drainage area of 60 square miles. Completed in 1910, 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 05/23/2023.
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Location
| State | Connecticut |
| County | New London |
| Nearest City | Jewett City |
| River/Stream | Pachaug River |
| Coordinates | 41.60988, -71.94133 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 385 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
| Normal Storage | 590 acre-ft |
| Surface Area | 122 acres |
| Drainage Area | 60 sq mi |
| Max Discharge | 3,985 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Connecticut DEEP |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/23/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00438 |
| Federal ID | CT00438 |
| More Info | State Dam Safety Program |