Whitmans Pond Dam
Whitmans Pond Dam is a concrete dam located in Norfolk County, Massachusetts. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Whitmans Pond Dam
The primary purpose of Whitmans 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 Weymouth (local government). It impounds the Weymouth Back River near Weymouth.
The dam stands 15 feet tall and stretches 60 feet across, creates a reservoir covering 145 acres, has a maximum storage capacity of 1,920 acre-feet, and collects water from a drainage area of 12 square miles.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 09/23/2022.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Massachusetts dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Massachusetts |
| County | Norfolk |
| Nearest City | Weymouth |
| River/Stream | Weymouth Back River |
| Coordinates | 42.21108, -70.92939 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Length | 60 ft |
Storage & Hydraulics
| NID Storage | 1,920 acre-ft |
| Max Storage | 1,920 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 145 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 1,220 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Weymouth |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/23/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00775 |
| Federal ID | MA00775 |
| More Info | State Dam Safety Program |