Green Mountain Lake Dam in Pawling, New York, is a significant masonry dam located on the Swamp River.
Wind
Humidity
Owned by the local government and regulated by the NYS DEC, this dam's primary purpose is recreation, providing a surface area of 32 acres and a storage capacity of 204 acre-feet. The dam stands at a height of 17 feet and stretches 110 feet in length, with an uncontrolled spillway width of 18 feet.
With a hazard potential rated as significant and a moderate risk assessment, Green Mountain Lake Dam is subject to regular inspections every four years, with the last assessment conducted in June 2017. Despite its condition being marked as "Not Rated," emergency action plans have been prepared, last revised in December 2020. The dam poses a moderate risk (level 3) and is not under the jurisdiction of the US Army Corps of Engineers.
Water resource and climate enthusiasts will find Green Mountain Lake Dam a captivating structure due to its recreational purpose, location on the Swamp River, and the measures in place to manage potential risks and emergencies. The dam's characteristics, including its masonry construction, storage capacity, and hazard potential, make it an intriguing site for those interested in water infrastructure and environmental management in the Dutchess County area of New York.
Dam Length |
110 |
Dam Height |
17 |
River Or Stream |
SWAMP RIVER |
Primary Dam Type |
Masonry |
Surface Area |
32 |
Drainage Area |
1.06 |
Nid Storage |
204 |
Hazard Potential |
Significant |
Nid Height |
17 |