Placement of disruptive and diverting elements to redirect, disturb, divert and the river current and to initiate water dynamics. Modified river channels are often lacking natural flow variation due to a lack of natural disturbance of the stream.
Benefits
(+) Current deflection and redirection
(+) Provide habitat for organisms, birds and aquatic animals
(+) Water velocity reduction
Limitations
(-) Disruptive elements can block the river flow if placed without proper analysis
(-) Conflict may arise with potential boat traffic demanding disturbance free river.
Assessment
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