Question: The Blackstone River in northern Rhode Island normally flows at about 25 m3/s and resembles Fig. P10.35 with a clean-earth center channel, b1 20 m

The Blackstone River in northern Rhode Island normally flows at about 25 m3/s and resembles Fig. P10.35 with a clean-earth center channel, b1 ≈ 20 m and y1 ≈ 3 m. The bed slope is about 2 ft/mi. The sides are heavy brush with b2 ≈ 150 m. During hurricane Carol in 1955, a record flow rate of 1000 m3/s was estimated. Use this information to estimate the maximum flood depth y2 during this event.

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