Greenwood Lake at Awosting in New Jersey is a popular recreational destination for boating, fishing, and swimming.
Wind
Humidity
The lake is situated in the Ramapo Mountains and spans across both New Jersey and New York. Greenwood Lake was originally built in the 1830s as part of a canal system to transport goods between New York City and the Delaware River. Today, the lake is primarily fed by the Wanaque and Ringwood rivers and its hydrology is largely affected by precipitation, snowpack, and surface runoff. The lake serves as a major source of drinking water for several communities in northern New Jersey. While there are no significant agricultural uses, the lake is a popular spot for recreational fishing and boating.
| Lake Or Reservoir Water Surface Elevation Above Navd 1988, Ft 24hr Change | 0.05% |
| Percent of Normal | 100% |
| Minimum |
613.41 ft
2021-12-05 |
| Maximum |
697.07 ft
2025-06-18 |
| Average | 618 ft |
| Dam_Height | 17 |
| Drainage_Area | 27.1 |
| Year_Completed | 1928 |
| Nid_Storage | 13269 |
| Primary_Dam_Type | Concrete |
| Surface_Area | 1733 |
| River_Or_Stream | Wanaque River |
| Dam_Length | 270 |
| Hazard_Potential | High |
| Nid_Height | 17 |
Wanaque River At Awosting Nj
|
5cfs |
Ringwood Creek Near Wanaque Nj
|
13cfs |
West Brook Near Wanaque Nj
|
78cfs |
Wanaque R At Wanaque Nj
|
13cfs |
Ramapo River At Ramapo Ny
|
579cfs |
Ramapo River At Suffern Ny
|
593cfs |