A catchment soil is found to have the following Horton infiltration parameters: fo = 100 mm/h, fc = 20 mm/h, k = 0.030 min 1, %3D %3D %3D and the depression storage on the ground surface is estimated as 2 mm. The design storm is given by the following hyetograph: Interval (min) Rainfall (mm/hr) 10 0-10 10-20 | 20-30 | 30-40 40-50 50-60 10 20 80 100 80 Estimate the time (min) at which ponding begins, O 27 O 35 O 20 О 38 O None of the choices

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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15.
A catchment soil is found to have the following Horton
infiltration parameters:
fo = 100 mm/h,
fc = 20 mm/h,
k = 0.030 min1,
%3D
and the depression storage on the ground surface is estimated
as 2 mm.
The design storm is given by the following hyetograph:
Interval (min)
Rainfall (mm/hr) | 10
0-10 10-20 | 20-30 | 30-40 | 40-50 50-60
100
20
80
80
10
Estimate the time (min) at which ponding begins,
O 27
O 35
O 20
O 38
O None of the choices
Transcribed Image Text:A catchment soil is found to have the following Horton infiltration parameters: fo = 100 mm/h, fc = 20 mm/h, k = 0.030 min1, %3D and the depression storage on the ground surface is estimated as 2 mm. The design storm is given by the following hyetograph: Interval (min) Rainfall (mm/hr) | 10 0-10 10-20 | 20-30 | 30-40 | 40-50 50-60 100 20 80 80 10 Estimate the time (min) at which ponding begins, O 27 O 35 O 20 O 38 O None of the choices
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