Nakajima Water Purification Plant

The Nakajima Water Purification Plant is a facility in Nagaoka that combines industrial function with recreational space and displays water towers plus exhibits about water treatment. The buildings and displays sit along walkable paths that make the grounds accessible to visitors.

The plant was built in 1927 during the Showa era and featured round building designs that reflected early 20th century architectural tastes. Its construction marked a significant moment in the region's modern water infrastructure.

The facility was recognized as a Registered Tangible Cultural Property because it represents industrial development in Niigata Prefecture. Visitors see how this technical infrastructure became part of local heritage.

Visitors can explore the grounds on foot and view different areas along marked paths. The routes are easy to walk and pass by the main display points, making the visit straightforward and manageable.

The plant keeps its original water towers and continues to function as an active treatment facility while remaining open to the public. This rare combination allows visitors to see historic structures alongside working modern water systems.