《明史·志·卷六十一》
到达扬子湾柬，就分为二道：一条从仪真通往长江口，以漕运上江湖广、江西之粮；一条从瓜洲通往西江嘴，以漕运下江两浙之粮。
至扬子湾东，则分二道：一由仪真通江口，以漕上江湖广、江西；一由瓜洲通西江嘴，以漕下江两浙。
When arriving at Yangtzi Bay, there were two ways: one was from Zhenjiang to the Yangtze River bank, transporting grains from Jiangnan and Jiangxi; another one was from Guazhou to Xi Jiang Mouth to transport grains from Zhejiang and other provinces.