Monhagen Lake Dam
New York — Orange County — MONHAGEN BROOK
Location
| State | New York |
| County | Orange |
| River | MONHAGEN BROOK |
| Coordinates | 41.46083, -74.45306 |
Physical Characteristics
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 300 ft |
| NID Storage | 858 acre-ft |
| Max Storage | 858 acre-ft |
| Surface Area | 65 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | April 3, 2025 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1867 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | CITY OF MIDDLETOWN |
| Other Name | Reservoir #1 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.