The Rolling Dam on the Blackstone River has a weedy bottom and an average fl ow rate of
Chapter 10, Problem p10.111(choose chapter or problem)
The Rolling Dam on the Blackstone River has a weedy bottom and an average fl ow rate of 900 ft3 /s. Assume the river upstream is 150 ft wide and slopes at 10 ft per statute mile. The water depth just upstream of the dam is 7.7 ft. Calculate the water depth one mile upstream (a) for the given initial depth, 7.7 ft; and (b) if fl ashboards on the dam raise this depth to 10.7 ft.
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