Floodwood Lake, located in St. Louis County, Minnesota, is a gravity dam built in 1940 with a primary purpose of "Other." It stands at a height of 7.1 feet and has a structural height of 8 feet, creating a reservoir with a maximum storage capacity of 6,213 acre-feet. The dam spans 35 feet in length and covers a surface area of 341 acres, with a drainage area of 12.2 square miles.

The dam, managed by the Minnesota Department of Natural Resources, is regulated, permitted, inspected, and enforced by state authorities. Despite its low hazard potential and satisfactory condition assessment in 2009, the dam undergoes inspections every 8 years to ensure its safety and functionality. With a normal storage capacity of 5,232 acre-feet, Floodwood Lake serves as a vital resource for water management in the region and plays a crucial role in flood control and ecosystem preservation along the Floodwood River.

This historic structure, designed by WPA-BC, is a key feature in the landscape of the city of Floodwood and serves as a testament to the engineering ingenuity of the past. As climate change continues to impact water resources and weather patterns, Floodwood Lake remains a critical asset for water supply and flood protection in the region, highlighting the importance of sustainable water management practices to address the challenges of a changing climate.