Length of contracted rectangular weir

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A trapezoidal canal 6m wide at the bottom and having a side slope of 1V:2H carries water with a mean velocity of 1.0m/s to a depth of 60cm. What length of contracted rectangular weir 1.0m high should be placed at the middle of the canal to make the depth of water upstream 1.50m?

Reference no: EM1385136

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