Forest Practices Code - Channel Assessment Procedure Guidebook
Figure 2. Relative channel size and location within a watershed (after Church 1992). Small channels: individual clasts constitute significant form elements, with pools dammed behind individual rocks or a line of rocks. Intermediate channels: channel width is typically 20–30 m with a riffle-bar-pool sequence interrupted by large woody debris (LWD) pieces and jams. Large channels: channel width is >20–30 m with a riffle-bar-pool sequence determined entirely by fluvial processes and geological constraints.
