Transcript Images - Barriers and Erosion (*.pptx)

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Natural & man-made fish passage barriers
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A dike
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River with high suspended load
http://uregina.ca/~sauchyn/geog323/381.jpg
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Hillslope Rilling – Rottingdean, UK
http://soilerosion.net/image/rottingdean_erosion.jpg
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Gravel restoration project in gravel-deficient river – American River, California
http://fishwithjd.com/wp-content/uploads/2013/09/20130921-082212.jpg
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Logging road causing excessive sediment influx – Wilson River, Tillamook State Forest
http://crag.org/wp-content/uploads/2008/11/North-Fork-Road-2b.jpg
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Excessive bank erosion, causing house damage – Matanuska River, Alaska
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Splash dam
http://www.facstaff.bucknell.edu/brh010/research/stream_restoration.html
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Splash dam
http://www.bluebook.state.or.us/facts/scenic/work/logsplash.htm
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Splash dam
http://commons.wikimedia.org/wiki/File:Splash_Dam_3.jpg
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photography of in-channel gravel mining operation
http://www.yolocounty.org/general-government/general-government-departments/county-administrator/county-administratordivisions/natural-resources/the-cache-creek-area-plan-ccap-/the-off-channel-mining-plan-ocmp-
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photography of in-channel gravel mining operation
http://kansasriver.org/raising-fees-for-sand-dredgers/
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photography of in-channel gravel mining operation
http://ternandplover.unl.edu/info/sandgravelmining.asp
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River Meander / Washout – Uvas Creek, California: After restoration in Jan. 1996 / Project destruction in Jun. 1997, after
storm flows
http://www.wou.edu/las/physci/taylor/g407/restoration/wohl_etal_2005_restoration.pdf
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Forms of Erosion: Surface erosion from road, Mass-wasting, Bank erosion
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Erosion from poor road drainage