Wakai Station (若井駅, Wakai-eki) is a junction passenger railway station located in the town of Shimanto, Takaoka District, Kōchi Prefecture, Japan.

The station has one side platform serving one track, located on an embankment.

Kawaoku Shingōjō (川奥信号場) is a junction of Tosa Kuroshio Railway Nakamura Line and Shikoku Railway Company Yodo Line in Kawaoku, Kuroshio, Hata District, Kōchi .

The shared track and the junction are possessed by Tosa Kuroshio Railway.

One track is straightened so that the trains of Nakamura Line including limited express Nanpū can pass the S.B.