River reclamation

From Wikipedia, the free encyclopedia

The construction of new buildings and new roads accelerates the discharge of surface water runoff and raises flood peaks in the lower reachers of river catchments. River banks therefore have to be raised and flood channels have to be constructed. The adoption of sustainable urban drainage systems facilitates the reclamation of rivers. When water is detained, infiltrated and transpired near to the where it falls, flood peaks are lowered and rivers can be reclaimed. The high concrete walls in which they were confined can be replaced by vegetated embankments. Water quality is improved and wildlife returns to the river. Projects to achieve these objectives are described as River Reclamation or River Restoration.