四ヶ堰円筒分水（長野県塩尻市）

[@msdldp]

Hello, I am following your channel for quiet a time know. There are realy some pieces off art in these waterworks. But wat is the purpose of these round waterworks ?. I suppose water arrives by un underground pipe, but what happens after?. Is it to divide the stream in different stream. Melle from france

[@junchan_dam]

Thank you for your comment. This facility is called a circular tank division works, which is a water utilization facility that distributes agricultural water equally to the beneficiary areas. In the case of this circular tank division works, water is blown up from the center of the facility using the siphon principle from the main canal and distributed to each beneficiary area in a pre-determined ratio. This is more of an enthusiast channel, but we look forward to working with you in the future.