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C. Second. Larqer Pulse Flow Test <br />1 Monitor river stage and discharge at every North Platte River <br />bridae from Kevstone. NE to North Platte. NE. <br />2 Monitor river stage and discharge at every Platte River bridge from <br />North Platte. NE to Chapman. NE. <br />3 Monitor North Platte River stage at all segments where potential <br />floodina is a concern from Kevstone. NE to North Platte. NE. <br />4 Monitor Platte River stage at all segments where potential flooding <br />is a concern from North Platte. NE to Chapman. NE. <br />5 Monitor velocity, depth, suspended sand concentration, and bed <br />load at the 4 study reaches sites between the J -2 Return channel <br />and Chapman, NE. Accomplished by tasks I.A.1, I.C.5 and II.A.4- <br />6 Measure channel bed, sandbar, and island topography <br />immediately after the pulse test flow at the 4 study reaches <br />between the J -2 Return Channel and Chapman, NE. <br />Accomplished by tasks I.C.1 -6 and II.A.4 -9. <br />7 Measure channel bed, sandbar, and island topography 3 to 4 <br />months after the pulse test flow at the 4 study reaches between the <br />J -2 Return Channel and Chapman. NE. Accomplished by task <br />D. Additional Pulse Flow Tests <br />Repeat data collection and monitoring steps 5 to 7 from the second <br />pulse flow test. <br />E. Data Analvsis <br />1 Compare river stage and discharge measurements, collected <br />durina the pulse flows. to validate the unsteadv flow model <br />2 Evaluate repeat aerial photographs, ground photographs, and <br />channel topographv measurements to determine the effects of the <br />3 Evaluate channel topography measurements to determine the <br />effects of the island clearina and lowering. <br />4 Evaluate the hydraulic and sediment transport data to determine <br />spatial and temporal distribution of flow velocities and sand <br />transport during pulse flows. Compute the sediment budaet for the <br />F. Write Report <br />1 Draft Interim report <br />2 Final report <br />