Forge Pond Dam is an earth dam located in Hampshire County, Massachusetts. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 115 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Forge Pond Dam
The primary purpose of Forge 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 Granby (local government). It impounds the Bachelor Brook near Granby.
The dam stands 14 feet tall and stretches 115 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 600 acre-feet, and collects water from a drainage area of 14 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/23/2020.
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Location
| State | Massachusetts |
| County | Hampshire |
| Nearest City | Granby |
| River/Stream | Bachelor Brook |
| Coordinates | 42.27443, -72.47076 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 115 ft |
Storage & Hydraulics
| NID Storage | 600 acre-ft |
| Max Storage | 600 acre-ft |
| Normal Storage | 380 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 14 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Granby |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 03/23/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA00488 |
| Federal ID | MA00488 |
| More Info | State Dam Safety Program |