Tivoli Lake Dam
New York — Rockland County — TR-RAMAPO RIVER
Location
| State | New York |
| County | Rockland |
| River | TR-RAMAPO RIVER |
| Coordinates | 41.14175, -74.19924 |
Physical Characteristics
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 140 ft |
| NID Storage | 1,100 acre-ft |
| Max Storage | 1,100 acre-ft |
| Surface Area | 103 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | August 28, 2024 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1908 |
| Primary Purpose | Recreation |
| Dam Type | Concrete |
| Owner Type | Private |
| Owner | PIERSON LAKE HOMEOWNERS ASSOCIATION |
| Other Name | Cranberry Pond |
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.