Third Reservoir Spillway and Dam
New York — Rockland County — TR-HORSE CHOCK BROOK
Location
| State | New York |
| County | Rockland |
| River | TR-HORSE CHOCK BROOK |
| Coordinates | 41.20750, -74.08056 |
Physical Characteristics
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 510 ft |
| NID Storage | 373 acre-ft |
| Max Storage | 373 acre-ft |
| Surface Area | 21 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | April 26, 2023 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1946 |
| Primary Purpose | Water Supply |
| Dam Type | Concrete |
| Owner Type | State |
| Owner | NYSOPRHP - PALISADES INTERSTATE PARK COMMISSION |
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.