Cliff Lake, located in Sullivan County, New York, is a privately owned hydroelectric facility with a primary purpose of generating power.
Wind
Humidity
Constructed in 1930 by Chas. T. Main, Inc., this concrete dam stands at 36 feet high and stretches 610 feet in length, holding a maximum storage capacity of 2,873 acre-feet. The reservoir covers an area of 190 acres and is fed by the Mongaup River, with a drainage area of 30 square miles.
With a high hazard potential due to its size and location, Cliff Lake is under the jurisdiction of the Federal Energy Regulatory Commission for regulation and inspections. While the dam has not been modified in recent years, it is subject to regular inspections to ensure its structural integrity. The facility also serves recreational purposes in addition to hydroelectric power generation, making it a significant contributor to the local water resource management and climate adaptation efforts in the region.
Year Completed |
1930 |
Dam Length |
610 |
Dam Height |
36 |
River Or Stream |
Mongaup River |
Primary Dam Type |
Concrete |
Surface Area |
190 |
Drainage Area |
30 |
Nid Storage |
2873 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
36 |