Upper Dam is a historic gravity dam located on the North Fork Flambeau River in Park Falls, Wisconsin. Built in 1916, the dam serves a primary purpose of hydroelectric power generation and stands at a height of 18 feet with a length of 200 feet. The dam has a storage capacity of 3,280 acre-feet and a maximum discharge of 9,260 cubic feet per second.

Managed by a private owner, Upper Dam is regulated by the Federal Energy Regulatory Commission and undergoes inspections every three years. The dam features a controlled spillway with a width of 98 feet and is equipped with four Tainter (radial) outlet gates. Despite its age, the dam is classified as having a low hazard potential and its risk assessment is rated as very high, emphasizing the critical importance of its maintenance and management for the surrounding community and water resources.

Upper Dam plays a crucial role in the local hydroelectric power supply and water management system, contributing to the sustainability and resilience of the region. With its scenic location and historical significance, the dam serves as a focal point for water resource and climate enthusiasts interested in the intersection of infrastructure, energy, and environmental conservation.