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<br />'" <br /> <br />3 <br /> <br />2 <br /> <br />Reach II, upstream pool <br />upper portion <br /> <br />g1 <br />" <br />,2 <br />16 <br />it; 0 <br />0; <br />" <br />.2: <br />16 <br />4i -1 <br />a:: <br /> <br /> <br />-2 <br /> <br />-3 <br />o <br /> <br />2 <br /> <br />4 <br /> <br />6 <br /> <br />8 10 12 14 16 18 20 22 24 <br />Distance from left bank (m) <br /> <br />1- channel bed - 10/96 <br /> <br />+~ 3/97 <br /> <br />.9/97 <br /> <br />o <br /> <br />Reach II, downstream pool <br />constriction <br /> <br />-1 <br /> <br /> <br />g-2 <br />" <br />.2 <br />1ii <br />it;-3 <br />0; <br />" <br />,;;: <br />16 <br />0;-4 <br />a:: <br /> <br />-5 <br /> <br />-6 <br />o <br /> <br />2 <br /> <br />4 <br /> <br />6 <br /> <br />8 10 12 14 16 18 20 22 24 <br />Distance from left bank (m) <br /> <br />1- channel bed - 10/96 <br /> <br />+f 3197 <br /> <br />-.9/97 <br /> <br />Figure 4, (a) Surveyed cross section through the upstream portion of the pool at Reach I (500 m <br />downstream from dam). Bold solid line indicates original channel cross section before the Sep, <br />1996 sediment release. Lighter solid line indicates channel bed in early Oct. 1996, immediately <br />following the sediment release. Light shading indicates channel bed at time of 31 March 1997 <br />survey, and heavier shading indicates the channel bed as ofSep, 1997. <br />(b) Surveyed cross section through the constriction at the central portion of the pool at Reach II <br />(3,2 Ion downstream from dam), Symbols as for Figure 4a, <br />