Channel Assessment Procedure Field Guidebook

[Table of Contents]

Appendix 2.

Diagnostic channel keys


Morphology:
Disturbance level:
Code:
Cascade-pool
Partially aggraded
CPc-w: A1
CPc-w
A1




Relevant field indicators:
S2, S4, C3, D2
Generally:
Interlocking cobbles and LWD form steps along the channel.
Bars are relatively large and extend from the channel margins into pool zones.
Pools are less deep, due to infilling, and cover one-half to one-third of the channel.
Channel sediments include a wide range of textures, but overall texture is relatively fine.
Channel widening is evident.

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