C890 The Yuanxiao Agreement 2(1)

The streets of Luoyang were crisscrossed with a large number of man-made aqueducts.

The sewers were connected by aqueducts that had been completed by generations of prefects. They carried the responsibility of drainage, and were connected to the moat, forming a unique drainage system in Luoyang, and not far from Zhong Ruoyou's medical center, there was a waterway flowing through