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<br />Proceedings of Ihe Sevenlh Federal lmeragency Sedimenlalion Conference, March 25 10 19, 1001. Reno, Nevada <br /> <br />. <br /> <br />c. <br /> <br />. <br /> <br /> <br />APPLICATION OF THE METHOD <br /> <br />Comuarison of bedload and susuended-Ioad transuort: To detennine the relative importance <br />of bedload and suspended-load transport in the Colorado River in Grand Canyon, measurements <br />of suspended load were made at 2 locations using a P-61 point-integrating sampler during the <br />interval of rotating side-scan sonar observations. These measurement locations were at 2 USGS <br />gaging stations: (1) the Colorado River above Little Colorado River near Desert View (station # <br />09383100) and the Colorado River near Grand Canyon (station # 09402500). These gages are <br />infonnally known as the Lower Marble Canyon gage and Grand Canyon gage, respectively. The <br />discharge of water and the grain size of the bed sand at each location were comparable during the <br />measurements. At the Lower Marble Canyon gage, the discharge of water during the <br />measurement period was approximately 550 ml/s [19,300 cfs] and the median size of the bed <br /> <br />. <br /> <br />111- 143 <br />