Answered: Q1: Find -index for the below 15 hours…

Q1: Find -index for the below 15 hours duration rain storm hyetograph where the direct runoff is 30 mm during the storm Time (hrs) Excess Rainfall (cm) 0-3 3-6 6-9 9-12 12-15 0.6 1.5 24 36 3.0

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 11P

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Concept explainers

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

Q1: Find -index for the below 15 hours duration rain storm hyetograph where the direct runoff is
30 mm during the storm.
Time (hrs)
Excess Rainfall (cm)
0-3 3-6 6-9 9-12 12-15
0.6 1.5 24
3.6 3.0

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