Chaohu Lake project area, in the dry season when water level is 6.03m, the depth range from 0 ~ 6.2m; in the wet period when the water level is 7.57m, the depth range from 1.56 ~ 7.76m. Chaohu Lake has 33 rivers, including the dredging area near a lake Chiung Yang Gao Zhe River...