Forge Pond Dike
Forge Pond Dike is an earth dam located in Hampshire County, Massachusetts, built in 1978. It carries a Significant hazard potential classification and has a poor condition assessment.
About Forge Pond Dike
The primary purpose of Forge Pond Dike 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 11 feet tall and stretches 90 feet across, creates a reservoir covering 70 acres, has a maximum storage capacity of 540 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1978, the structure is 48 years old.
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 | 42.27378, -72.47087 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Length | 90 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 540 acre-ft |
| Max Storage | 540 acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 14 sq mi |
| Spillway Type | None |
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 | MA00489 |
| Federal ID | MA00488S001 |
| More Info | State Dam Safety Program |