Is it illegal to dredge the river and put silt on the river slope?

River dredging and silt discharge on river slopes are illegal.

It is dangerous to release silt.

Professional qualification of river and lake regulation engineering. River dredging generally refers to river regulation and belongs to water conservancy projects. Through mechanical equipment, the silt deposited at the bottom of the river is blown and stirred into turbid water, which flows away with the river, thus playing a dredging role.