The overbridge above Platform 1 and between Platform 2 and 3 nearer the main segment was constructed during government ownership, and the section that spans the distance between Platform 2 and 3 and Platform 4, fit for the height of aerial-type electric train wiring, was installed when Miyafuku Railway commenced operations.
跨線橋は、国鉄時代からのものが本屋駅舎寄り1番のりばと2番3番のりばの間に、宮福鉄道開業時に増設した架空電車線方式対応高さのものが2番3番のりばと4番のりばの間にある。