《徐霞客游记·滇游日记八》
两条河汇合后流过四通桥，又分出一半往东流去，灌溉晋宁州北部的土地。
二水合而出四通桥，又分其半，东灌州北之田。
After the two rivers converge, they flow through Sitongqiao, and then half of them flow east to irrigate the land in the northern part of Jinning Prefecture.