Swansea Dam
Swansea Dam is a stone dam located in Bristol County, Massachusetts. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Swansea Dam
The primary purpose of Swansea 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 Swansea (local government). It impounds the Lewin Brook near Swansea.
The dam stands 13 feet tall and stretches 105 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 113 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 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 01/19/2022.
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Location
| State | Massachusetts |
| County | Bristol |
| Nearest City | Swansea |
| River/Stream | Lewin Brook |
| Coordinates | 41.74968, -71.19510 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 13 ft |
| Dam Length | 105 ft |
Storage & Hydraulics
| NID Storage | 113 acre-ft |
| Max Storage | 113 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,002 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Swansea |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/19/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01084 |
| Federal ID | MA01084 |
| More Info | State Dam Safety Program |