Pine Acres Lake Dam is an earth dam located in Windham County, Connecticut, built in 1880. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 9 ft9 ft tall and 640 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 Pine Acres Lake Dam
The primary purpose of Pine Acres Lake 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 Cedar Swamp Brook near Hampton.
The dam stands 9 feet tall and stretches 640 feet across, creates a reservoir covering 190 acres, has a maximum storage capacity of 955 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1880, 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. The most recent inspection on record was 05/23/2023.
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Location
| State | Connecticut |
| County | Windham |
| Nearest City | Hampton |
| River/Stream | Cedar Swamp Brook |
| Coordinates | 41.77645, -72.07758 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 640 ft |
| Year Completed | 1880 (146 years old) |
Storage & Hydraulics
| NID Storage | 955 acre-ft |
| Max Storage | 955 acre-ft |
| Normal Storage | 605 acre-ft |
| Surface Area | 190 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 853 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Connecticut Deep |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/23/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00669 |
| Federal ID | CT00669 |
| More Info | State Dam Safety Program |