Hallville Pond Dam
Hallville Pond Dam is an earth dam located in New London County, Connecticut, built in 1920. It carries a Significant hazard potential classification and has a fair condition assessment.
About Hallville Pond Dam
The primary purpose of Hallville Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Piela Electric (private). It impounds the Halls Brook Trib near Hallville.
The dam stands 13 feet tall and stretches 220 feet across, creates a reservoir covering 11 acres, has a storage capacity of 72 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1920, 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 09/28/2021.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Connecticut |
| County | New London |
| Nearest City | Hallville |
| River/Stream | Halls Brook Trib |
| Coordinates | 41.49406, -72.03331 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 220 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 72 acre-ft |
| Normal Storage | 72 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 17 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Piela Electric |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 09/28/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00587 |
| Federal ID | CT00587 |
| More Info | State Dam Safety Program |