Thanks to the completion of Amarube Bridge and Tokan Tunnel in the following year, the Kasumi - Hamasaka section came into operation; consequently, the Kyoto - Izumoimaichi section became the Sanin Main Line.
翌年、余部橋りょう、桃観トンネルの完成により、香住～浜坂間が開業し京都～出雲今市間が山陰本線となった。