Develop desirable farmland. Increase channel flow and remove restrictions causing flooding. Channelization actually caused more flooded farmland. Slough's became flooded and do not drain into river bed. Channel's become wider due to erosion of banks.
Banks become undercut allowing slabs of bank to fall away.
Reestablishment of banks through natural succession is slow. Rivers are continually trying to restore original meanders. Flood plains of old meanders and land covered with backed up water become artificial swamps where plant species are killed off, dissolved oxygen levels diminish, and wildlife numbers slowly decrease. Loess is a highly erodable soil formed from silt. Therefore the stabilization process is very slow.