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Bed Material Sampling <br /> Two locations were chosen for in-stream pebble counts (Figure 5). The upstream location <br /> (station 3250) was chosen for its potential as a sediment source for the downstream restoration <br /> site and as a potential reference for bed material composition in the restored reach. The second <br /> location (station 4450) was chosen to evaluate whether stream bed materials had been modified <br /> from natural condition. Pebble counts included 100 random samples of stream bed material <br /> (Wolman, 1954). All grains were measured by the median axis. <br /> In addition, a bulk sediment sample was collected at the upstream location(station 3250) to <br /> measure the finer sediment that could not be measured with the pebble count method. The bulk <br /> bed sediment sample was dried for 24 hours, and then sorted using a sieve set on a shaker <br /> table. All grains larger than 2 millimeters were sorted by standard sieves. <br /> . 'Ifft <br /> 3250 <br /> �', <br /> ,s 4 CE ,,,,,, , <br /> il <br /> i - - A <br /> , , s',,,,, ,,, <br /> .. - „. ,.., <br /> , .• .. <br /> cc <br /> . 4. <br /> .y. <br /> Firm �7. ,„, <br /> ....„,,fr - . f ,. <br /> Harbison Cr.fieldmap page 4 of 6 4 SG I � <br /> e�m'::::::::::.— Feet <br /> Figure 5.Locations of pebble counts indicated by yellow stars. <br /> 5 <br />