Tennanah Lake Dam, located in Sullivan County, New York, stands as a testament to the importance of water resource management and climate resilience. Built in 1914, this concrete dam serves primarily for recreational purposes, offering a serene backdrop for visitors to Tennanah Lake. With a height of 17 feet and a length of 41 feet, the dam plays a crucial role in regulating the flow of Trout Brook and maintaining the surrounding ecosystem.

Despite its age, Tennanah Lake Dam remains in good condition, with regular inspections conducted by the New York State Department of Environmental Conservation. With a significant hazard potential and a high-risk assessment rating, the dam is closely monitored to ensure its structural integrity and the safety of nearby residents and recreational users. Although the spillway type is listed as "None," the dam is equipped with outlet gates for controlled water release in case of emergency.

As climate change continues to impact water resources and infrastructure, the importance of maintaining and upgrading dams like Tennanah Lake Dam becomes increasingly evident. With proper risk management measures in place and a dedication to ongoing maintenance and inspection, this dam serves as a vital component in safeguarding the surrounding community and natural environment against potential water-related hazards.