Osage is a dam located in Henry, Tennessee, along the Walnut Fork Creek. Built in 1994, this earth-type dam stands at a height of 30.5 feet and has a hydraulic height of 30 feet. With a storage capacity of 90 acre-feet, Osage serves a low hazard potential and is rated as having a satisfactory condition assessment as of its last inspection in March 2018.

Managed by the Tennessee Safe Dams Program, Osage is subject to state regulations, permitting, inspection, and enforcement. Although the dam does not have a primary purpose specified, it is designated as a local government-owned structure. Its associated risks are considered moderate, with a risk assessment rating of 3. The dam has no associated locks, and its spillway type is listed as uncontrolled, with a width of 0 feet.

Osage's location falls within the Nashville District of the US Army Corps of Engineers, with Congressman David Kustoff representing the area. With its critical role in managing water resources and mitigating flood risks in the region, Osage is a key infrastructure component for water resource and climate enthusiasts to monitor and engage with.