On July 15 of the same year (1987), torrential rains that washed out the provisional bank of the Shira-kawa River poured into the Kamo-gawa River, which flows along the north side of Shijo Station, and the water flooded into the underground section, inundating Gojo Station.
同年7月15日集中豪雨のため四条駅北側で鴨川へ流れこむ白川の堤防が仮設で決壊して川の水が地下線に流れ込み五条駅が浸水した。