At what point did a project involving more maintenance and restoration begin ?
Dechannelisation of shorter reach ( 2 km long ) and lowered levee are also been proved to be an effective restoration approach together with natural ( or near natural ) flooding regime in order to improve soil processes spatial and temporal heterogeneity typical of natural floodplains Stream channels will often recover from channelization without human intervention , provided that humans do not continue to maintain or modify the channel .