Hideyoshi TOYOTOMI, when he built Fushimi-jo Castle, established the traffic system by building a bank around the Ogura-ike, and at this time he built the left bank along the Katsura-gawa River between Shimotoba and Noso to open the route for the present-day Toba-kaido Road.
豊臣秀吉は伏見城築城にあわせて、巨椋池に堤をめぐらせ交通体系を整備したが、このとき、現在の下鳥羽・納所間の桂川左岸に堤を築き、現在の鳥羽街道のルートを開いた。