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Restoration WARSSS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  701P0904,  . (doi: 10.13031/2013.17361)
Authors:   David Rosgen

The four Cs of river restorationCause, Consequence, Correction and Communication are better understood through the Watershed Assessment and River Stability and Sediment Supply (WARSSS) methodology. The WARSSS procedure involves a cumulative effects analysis of the watershed including the change in hillslope, hydrologic and channel processes influenced by various land use activities. Causes and consequences of instability related to specific processes are important to understand in order to correct the problem(s) rather than patch symptoms. Applying a geomorphic approach for river restoration and natural channel design, is not a simple cookbook procedure contrary to statements made by those unfamiliar with the method. Many river restoration projects that ignore the complexities inherent in assessment and geomorphic-based design, are often the central cause of failure.

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