《汉书·志·沟洫志》
这些谷从渭水漕运，与关中收获的没有两样，而底柱以束就可不再进行漕运了。 
谷从渭上，与关中无异，而底柱之东可毋复漕。 
These grains can be transported by the Wei River, which is no different from the grains harvested in Guanzhong, and Dizhu would no longer need to transport grains by ship.