Toasperns Pond Dam, also known as Beaver Brook Lake Dam, is a concrete structure located in Yulan, Sullivan County, New York. Built in 1940 for the primary purpose of recreation, this dam stands at a height of 27 feet and has a length of 279 feet. It has a storage capacity of 550 acre-feet and covers a surface area of 35 acres, serving the surrounding community as a popular spot for outdoor activities.

Managed by the local government and regulated by the NYS DEC, Toasperns Pond Dam has a high hazard potential and is classified as being in fair condition as of December 2018. The dam features an uncontrolled spillway with a width of 41 feet and a maximum discharge capacity of 3265 cubic feet per second. With a drainage area of 19.63 square miles, this dam plays a crucial role in water resource management in the region.

Despite its moderate risk assessment rating, Toasperns Pond Dam continues to be a key feature in the local landscape, offering recreational opportunities while also serving as an important structure for flood control and water storage. With regular inspections and enforcement measures in place, this dam remains a vital component of the water infrastructure in Sullivan County, New York.