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<br />Figure 5: Plot of wind speed vs. duration
<br />4. The intersection of the red curve and blue curve
<br />identifies the “Design Overland Wind Speed ( )”
<br />of 52 mph or 76 ft/sec. Find the overwater wind
<br />speed using Figure 3 and Equation 3. This gives a
<br />wind ratio of 1.21 from the figure and an adjusted
<br />overwater wind speed ( ) of 63 mph.
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<br />5. Find the wind setup using Equation 4.
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<br />6. Find the wave height using Equation 5.
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<br />7. Find the wave length using Equation 6.
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<br />8. Find the wave runup height using Equation 7.
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<br />Results:
<br />The estimated maximum significant wave height is 3.2
<br />feet with an overwater wind speed of 63 mph. The
<br />corresponding maximum height the water will reach
<br />from the still water flood level is 3.5 feet, which is the
<br />sum of wind setup (0.6 foot) and runup (2.9 feet).
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