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

FIGURE&-Continued Page

8-9. Graphs showing:
8. Relation between moment ann and the force required to bend vegetation to
45" past verticaL......... ........ ......... ......... .................................. ........... ......... ................................. 15
9. Vegetation conditions resulting from 22 flows at 17 sites, as a function
of stream power and the vegetation-susceptibility index............................................................ 17
10. Photograph showing effect of transported cobbles and boulders on riparian vegetation..................... 17
II. Graph showing effect oflbe 2-year and 10-year flow on brush and willow for roughness
coefficient (n) equal to 0.070 ............................................................................................................... 24
12-31. Photographs showing:
12. View from New River Road crossing looking upstream before the
flow of January 8, 1993, Cave Creek above New River Road (site 7) ....................................... 34
13. View from New River Road crossing looking upstream after the flow of
January 8, 1993, Cave Creek above New River Road (site 7)..................................................... 34
14. Looking upstream from left bank during the flow of March 1, 1991,
Skunk Creek above Interstate 17 (site 2) .................................................................................... 35
15. Looking upstream from midchannel after the flow of September 28, 1995,
Skunk Creek above Interstate 17 (site 2) .................................................................................... 35
16. View from left bank of channel looking upstream before the flow of February 15, 1995,
Hassayampa River near Wickenburg (site 9).............................................................................. 36
17. View from left bank of channel looking upstream after the flow of February 15, 1995,
Hassayampa River near Wickenburg (site 9).............................................................................. 36
18. View from right bank looking upstream before the flow of February 15, 1995,
Hassayampa River near Arlington (site 5).................................................................................. 37
19. View from right bank looking upstream after the flow of February 15, 1995,
Hassayampa River near Arlington (site 5).................................................................................. 37
20. Looking downstream from midchannel before the flow of December 10, 1991,
Agua Fria River tributary near Youngtown (site 13).................................................................. 38
21. Looking upstream from left bank during the flow of December 10, 1991,
Agua Fria River tributary near Youngtown (site 13).................................................................. 38
22. View from right bank looking toward laid-over willow in lbe main channel
after the flow of January 8, 1993, Francis Creek near Bagdad (site 10)..................................... 39
23. Looking across the channel from left bank toward several laid-over willows after
the flow of January 8, 1993, Francis Creek near Bagdad (site 10) ............................................. 39
24. Looking upstream from left bank before the flow of January 8, 1993,
New River above Interstate 17 (site 8)........................................................................................ 40
25. Looking upstream from left bank after the flow of January 8,1993,
New River above Interstate 17 (site 8)........................................................................................ 40
26. Looking upstream from right bank before the flow of January 8, 1993,
Verde River near Scottsdale (site 1) ........................................................................................... 41
27. Looking upstream from right bank afterlbe flow ofJanuary 8, 1993,
Verde River near Scottsdale (site I). .......................................................................................... 41
28. Looking upstream from midchannel before the flow ofJanuary 8, 1993,
New River above New River Road (site 16)............................................................................... 42
29. Looking upstream from midchannel after the flow of January 8, 1993,
New River above New River Road (site 16)............................................................................... 42
30. Looking upstream from midchannel at laid-over brush after the flow of
January 8, 1993, Salt River above Interstate 10 (site 6) ............................................................. 43
31. Looking upstream from left bank at willow after lbe flow of January 8, 1993,
Salt River above Interstate 10 (site 6). ........................................................................................ 43

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