Manns Pond Dam
Manns Pond Dam is an earth dam located in Norfolk County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.
About Manns Pond Dam
The primary purpose of Manns 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 Sharon (local government). It impounds the Massapoag Brook near Sharon.
The dam stands 14 feet tall and stretches 390 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 4 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 03/09/2023.
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Location
| State | Massachusetts |
| County | Norfolk |
| Nearest City | Sharon |
| River/Stream | Massapoag Brook |
| Coordinates | 42.12076, -71.16594 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 390 ft |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 280 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Sharon |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/09/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01277 |
| Federal ID | MA01277 |
| More Info | State Dam Safety Program |