Sediment deposition exists in the lake mouth of Changdou Harbor for a long time and develops seriously. It exerts great influences on the discharge and irrigation capacity of the river.
长兜港口门淤积现象由来已久，且呈日趋严重之势，极大影响了河道泄洪排涝与灌溉能力的发挥。
2
It is definitely an urgent issue to build additional infrastructures to increase the capacity of the port. As an old district of Ningbo port, Zhenhai harbor district has over 30 years' history.