Mountain Lake Dam
Massachusetts, Hampden County, Williamansett Brook, tributary to Chicopee River
Location
| State | Massachusetts |
| County | Hampden |
| River | Williamansett Brook, tributary to Chicopee River |
| Coordinates | 42.19294, -72.58492 |
Physical Characteristics
| NID Height | 32 ft |
| Dam Height | - |
| Dam Length | 250 ft |
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Surface Area | 0 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | December 22, 2025 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1923 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | City of Chicopee |
| Other Name | Roberts Pond Dam |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.