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th <br />O <br />r <br />IX <br />"7► <br />(n <br />10 <br />1 <br />0.1 <br />1 <br />• <br />Region 4. Steep braided streams <br />Region 3. Braided point -bar and wide -bend <br />\ pant -bar streams <br />° o." 7 \ ` Region 2. Straight braided streams <br />m ' ; ' 5.3 \\ 'fie Region 1. Equiwidth point -bar streams and <br />�� 23 320 �, °'�W� 4 stable canals <br />♦ 116 3P \\ <br />O ;� ° / .1 \ — B, surface width in feet <br />/ , / - � /. <br />]C - -- D, channel depth in feet <br />691 o&36 <br />010 10 3% o � _ <br />24 22 047 •65 <br />95 115 '- <br />•19�1g <br />' ` ' <br />se y 206 i — '71r <br />i � n <br />Sym. Source of data /1 a <br />o Schumm - ,� _ -- <br />• Stable canals <br />112 • ' <br />- A Miss. river <br />Number beside a point is No bedload : <br />' <br />measured width in feet movement <br />, <br />11 I <br />0 102 103 104 105 1 <br />Bankfull discharge, cfs <br />After Chang (1985). <br />IraM739921 b.cdr pg1 a bbs 215102 <br />FIGURE A1-4 <br />CHANGE IN CHANNEL MORPHOLOGY <br />RESULTING FROM THRESHOLD <br />INCREASE IN GRADIENT <br />Platte River Channel Dynamics Study <br />PARSONS <br />Denver, Colorado <br />