FLOOD01296

• County: Statewide
• Title: Method to Estimate Effects of Flow-Induced Vegetation Changes on Channel Conveyances of Streams in Central Arizona
• Date: 9/16/1998
• Prepared For: Central Arizona
• Prepared By: USGS
• Floodplain - Doc Type: Educational/Technical/Reference Information

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Table 13. Physical cha(acteristics of willow, palo verde, saltcedar, and mesquite in streams in central Arizona

(ft, foot; lb, pound; ft-Ib, foot pound]

Height of Base Moment Moment arm Base circumference of
vegetation circumference Force arm Moment divided by height vegetation divided by
(It) (It) (lb) (It) (It-Ib) of vegetation height of vegetation

.
4 0.20 4.0 2 8.0 0.5 0.05
4 .25 6.0 2' 12.5 .06
6 .25 10 2 20.3 .04
7 .30 13 3 39.4 .04
8 .30 14 3 42.4 .04
10 .40 16 4 64.4 .04
15 .60 49 6 294.4 .04
16 .50 36 6 216.4 .03
16 .70 47 6 282 .4 .04
16 .90 73 6 438 .4 .06
16 1.00 82 6 492.4 .06
17 .80 76 6 456.4 .05
17 1.10 70 6 420.4 .06
17 1.10 78 6 468.4 .06
18 .80 94 6 564.3 .04

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3 .20 13 2 26.7 .07
4 .20 15 2 30.5 .05
5 .20 13 2 26.4 .04
5 .20 50 2 100.4 .04
6 .30 22 3 66.5 .05
6 .30 24 3 72.5 .05
7 .30 60 2 120.3 .04
8 .60 96 3 288.4 .08
8 .40 32 4 128.5 .05
9 .40 48 4 192.4 .04
9 .90 140 4 560.4 .10
10 .50 76 4 304.4 .05
10 .60 95 4 380.4 .06
II .70 90 4 360.4 .06
12 1.40 170 5 850.4 .12

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6 .20 13 2 26.3 .03
7 .25 17 3 51 .4 .04
9 .30 20 4 80.4 .03
11 .30 24 4 96 .4 .03
13 .30 22 5 110.4 .02
14 .40 23 5 115.4 .03
14 .40 35 5 175.4 .03
15 .50 53 5 265.3 .03
15 .60 95 4 380.3 .04
16 .60 93 5 465 .3 .04

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5 .25 20 2 40.4 .05
6 .20 26 2 52.3 .03
7 .30 27 3 81 .4 .04
12 .30 26 3 78.2 .02
13 .70 162 4 648.3 .05
14 .50 94 4 376.3 .04
16 .50 161 6 966 .4 .03
17 .90 290 5 1,450.3 .05
18 1.10 230 7 1,610 .4 .06

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Basic Data 33

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