Ōigawa Railway's locomotives include five characters from the Thomas & Friends series: Thomas the Tank Engine, Hiro, Percy, James the Red Engine, and Rusty.

[2] In September 2022, the Ōigawa Main Line suffered substantial damage from Tropical Storm Talas.

Rail services between Kawane-Onsen Sasamado and Senzu Station were suspended until further notice.

The company also operates a bus line near Sumatakyō Onsen in the town of Kawanehon.

This article about a Japanese railway corporation or company-related topic is a stub.