Galesville is a gravity dam located in Glendale, Oregon, with a primary purpose of irrigation. Completed in 1985, this structure stands at a height of 162.5 feet and has a hydraulic height of 155 feet. With a storage capacity of 117,000 acre-feet and a drainage area of 73.3 square miles, Galesville plays a crucial role in managing water resources in the region.

The dam also serves multiple purposes including flood risk reduction, hydroelectric power generation, and providing a habitat for fish and wildlife. Managed by the Federal Energy Regulatory Commission, Galesville has a spillway type of uncontrolled and a hazard potential rated as high. While the condition assessment is currently not available, the emergency action plan was last revised in May 2021, indicating a commitment to ensuring the safety and efficiency of this essential water resource infrastructure.

Located on Cow Creek, a tributary of the Umpqua River, Galesville not only supports agricultural irrigation but also offers recreational opportunities with a surface area of 640 acres. As a significant feature in the water management system of Douglas County, Oregon, Galesville stands as a testament to effective dam engineering and the importance of sustainable water resource management in the face of climate challenges.