《明史·志·卷六十四》
现在，刘河、黄逋都畅通无阻，而中段吴淞江依然被堵塞，大概是江水与海潮相遇，海潮浑浊，依赖江水疾速洗涤它。
今刘河、黄浦皆通，而中江独塞者，盖江流与海潮遇，海潮浑浊，赖江水迅涤之。
Now, the Liuhe River and Huangpu River are both unobstructed, but the middle section of the Wusong River is still blocked, probably because the river water meets the tides, and the tides are turbid, relying on the river water to wash it quickly.