(CRAM) For Wetlands User's Manual Version 5.0.2

California Rapid Assessment Method for Wetlands v. 5.0.2 – Chapter 4
Worksheet 4.3: Calculating Average Buffer Width of AA
Line Buffer Width (m)
A
B
C
D
E
F
G
H
Average Buffer Width
Riverine wetlands: For Riverine wetlands, conduct the steps of Table 4.6 with
the following modifications. If the AA includes both sides of the channel (i.e., if
the channel is wadeable), then draw four lines through the buffer areas on each
side (see Figure 4.4 below). If the AA only exists on one side of the channel, then
draw four lines through the buffer on one side (Figure 4.4). No lines should
extend from the downstream or upstream ends of the riverine AA. Use
worksheet 4.3 to record the data for buffer width.
e
a
f
b
g
c
h
d
A B
Figure 4.4: Diagram of approach to estimate Buffer Width for Riverine AAs. Widths
are measured along lines a-h on both sides of a wadeable channel (A), and
along lines a-d on one side of a non-wadeable channel (B).
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a
b
c
d