For the conditions given in Problem 16-15, determine the critical depth and the maximum channel slope at which subcritical flow can occur.
What will be an ideal response?
Using Figure 16.7, the critical flow curve intersects the vertical line for a
flow of 300 ft3/sec at a depth of approximately 4.25 ft. The associated channel
slope is approximately 0.007 (0.7%), which is the maximum slope at which
subcritical flow will occur.
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