Long Pond Dam
Long Pond Dam is an earth dam located in Bristol County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.
About Long Pond Dam
The primary purpose of Long Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Easton (local government). It impounds the Queset Brook near Easton.
The dam stands 14 feet tall and stretches 900 feet across, creates a reservoir covering 94 acres, has a maximum storage capacity of 407 acre-feet, and collects water from a drainage area of 2 square miles.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 11/17/2022.
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Location
| State | Massachusetts |
| County | Bristol |
| Nearest City | Easton |
| River/Stream | Queset Brook |
| Coordinates | 42.07744, -71.11610 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 900 ft |
Storage & Hydraulics
| NID Storage | 407 acre-ft |
| Max Storage | 407 acre-ft |
| Normal Storage | 344 acre-ft |
| Surface Area | 94 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 164 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Easton |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/17/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA02407 |
| Federal ID | MA02407 |
| More Info | State Dam Safety Program |