23. An urban catchment has an area of 0.85 km². The slope of the catchment is 0.006 and themaximum length of travel of water is 1 km. The maximum depth of rainfall with a 15-yearreturn period is as below:Duration (min)Depth of rainfall (mm)51710 2031 403052406057 65for a return period of 15If a culvert for drainage at the outlet of this area is to be designedyears, estimate the required peak flow rate by assuming the runoff coefficient as 0.3.

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Answered: An urban catchm maximum length eturn…

Engineering

Civil Engineering

An urban catchm maximum length eturn period is as Duration (min Depth of rainfa If a culvert for

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

2
3. An urban catchment has an area of 0.85 km². The slope of the catchment is 0.006 and the
maximum length of travel of water is 1 km. The maximum depth of rainfall with a 15-year
return period is as below:
Duration (min)
Depth of rainfall (mm)
5
17
10 20
31 40
30
52
40
60
57 65
for a return period of 15
If a culvert for drainage at the outlet of this area is to be designed
years, estimate the required peak flow rate by assuming the runoff coefficient as 0.3.

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