Channel Assessment Procedure Field Guidebook

[Table of Contents]

Appendix 2.

Diagnostic channel keys


Morphology:
Disturbance level:
Code:
Step-pool
Severely aggraded
SPb: A3
SPb
A3




Relevant field indicators:
S3, S4, C3
Generally:
Step-pool morphology not evident due to complete infilling of pools.
Channel pattern is braided.
Stream flow is along multiple branches (braids).
LWD is not commonly present, although accumulations of LWD can form log jams.
No moss-covered bed sediments.

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