Finnell, located in Sawyer, Wisconsin, is a privately owned earth dam completed in 1963 for the primary purposes of fire protection, stock, or small fish pond. Managed by the USDA NRCS, this dam on Nail Creek has a height of 11 feet, a hydraulic height of 8 feet, and a length of 160 feet. With a storage capacity of 430 acre-feet and a drainage area of 18 square miles, Finnell serves as a crucial resource for water management in the area.

Despite its low hazard potential and fair condition assessment, Finnell poses a very high risk due to its proximity to residential and agricultural areas. The dam, with a normal storage capacity of 230 acre-feet, has a maximum discharge of 725 cubic feet per second and a surface area of 91 acres. The controlled spillway design and regular inspections by the Wisconsin Department of Natural Resources ensure its continued functionality and safety for the community.

Finnell's location, at coordinates 45.6813665 latitude and -91.0937945 longitude, makes it a key feature in water resource management in the region. With state regulation, inspection, and enforcement in place, this dam on Nail Creek plays a vital role in maintaining water quality and quantity for fire protection, livestock, and small fish pond purposes. Its historical significance and ongoing monitoring make Finnell a noteworthy site for water resource and climate enthusiasts to study and appreciate.