The figure below (Figure 1-15 in the book) Intensity-Duration-Frequency (IDF) shows curves for Houston, Texas. What is the rainfall intensity (in./hr) for the storm with a 2 hr duration and return period of 10 years? Rainfall intensity (in./hr) 20.0 15.0 10.0 8.0 6.0 4.0 2.0 1.0 0.8 0.6 0.4 0.2 0.1 0.08 0.06 0.04 0.02 5 10 Houston, Texas, 1910-1951 Note: Frequency analysis by method of extreme values, after Gumbel (1958) Period return (yr) 100 15 20 30 40 60 (min) 2 Duration 3 4 5 6 8 10 12 18 24 (hr)

The figure below (Figure 1-15 in the book) Intensity-Duration-Frequency (IDF) shows curves for Houston, Texas. What is the rainfall intensity (in./hr) for the storm with a 2 hr duration and return period of 10 years? Rainfall intensity (in./hr) 20.0 15.0 10.0 8.0 6.0 4.0 2.0 1.0 0.8 0.6 0.4 0.2 0.1 0.08 0.06 0.04 0.02 5 10 Houston, Texas, 1910-1951 Note: Frequency analysis by method of extreme values, after Gumbel (1958) Period return (yr) 100 15 20 30 40 60 (min) 2 Duration 3 4 5 6 8 10 12 18 24 (hr)

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 4P

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The table below lists rainfall data recorded at aUSGS gage for the storm of September 1, 1999. Thebasin area is 2050 acres. Using these data, developa mass diagram (in vs. t) and a rainfall hyetograph(in./hr vs. t) in 15-min intervals and determine thetime period with the highest intensity rainfall.
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