《明史·志·卷六十二》
然而，给事中汤聘尹则请求在京口旁边另外修建一座闸门，导引长江水向内注入，潮水上涨就打开，退落就关闭。
而给事中汤聘尹则请於京口旁别建一闸，引江流内注，潮长则开，缩则闭。
However, the Secretary-in-Charge of Guarding Officers, Tang Pin Yin, requested for another dam to be built at the side of Jingkou to direct the waters of the Yangtze River to flow inwards and be opened when the tide rose and closed when it ebbed.