Backwatering Schematic for Rock Weirs
Flow
Two Channel
Widths
One Channel
Width
Pool
Rock Weir: Drop to
downstream pool
8-12"
Finer material
upstream
cobbles to
gravels and
fines
Coarser
material
downstream
boulders
12-24"
Overall
Stream grade
Planview
Longitudinal View
Weir
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