遼河
In 1958, a river engineering project was conducted to address flood control problem in the coastal area near Yingkou. The upper reaches of the Wailiao River at Liujianfang was blocked off, diverting the Liao River towards the Shuangtaizi River. This effectively separated the Hun and Taizi rivers from the main body of Liao River system. Since 1958 the Hun and Taizi rivers are considered an independent river system of their own, and are no longer part of the Liao.