Winchester Dam is a dam on the North Umpqua River in Winchester, Oregon. Constructed in 1890, the dam was added to the National Register of Historic Places in 1996. The Winchester Dam was made from large timber cribs. Originally, the dam was a mere four feet high, which was raised to sixteen feet in 1907. The dam was the main source of water and electricity for the town of Roseburg until 1923. The dam's hydropower facilities have long since been removed, and the structure is now maintained solely for the recreational benefit of the Winchester Water Control District, composed of the private landowners surrounding the reservoir pool.