Hackett's Pond Dam
Hackett's Pond Dam is an earth dam located in Plymouth County, Massachusetts. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Hackett's Pond Dam
The primary purpose of Hackett's 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 Hanover (local government). It impounds the Longwater Brook near Hanover.
The dam stands 12 feet tall and stretches 350 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 43 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 03/20/2023.
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Location
| State | Massachusetts |
| County | Plymouth |
| Nearest City | Hanover |
| River/Stream | Longwater Brook |
| Coordinates | 42.14342, -70.87057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Length | 350 ft |
Storage & Hydraulics
| NID Storage | 43 acre-ft |
| Max Storage | 43 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 830 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Hanover |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01042 |
| Federal ID | MA01042 |
| More Info | State Dam Safety Program |