Irumagawa

Arakawa series first-class rivers

How to utilize Iruma River in Sayama City



The Iruma River is a first-class river in the Arakawa River system that flows through Saitama Prefecture. The Iruma River is a very large river that symbolizes the nature of Sayama City, and is the longest tributary of the Arakawa River.
There are large parks (squares) such as Nico Nico Terrace around the Irumagawa River. There are bridges that cross this river, such as the Irumagawa Ohashi Bridge, and since the bridges are only available in limited areas, traffic jams tend to occur during rush hours and around the bridges.