A small rural catchment had rapid urbanization over a period. The impact of urbanization on the urban hydrology of the area is reflected in the change occurring in the 1-hour unit hydrograph of the area as follows: Before Urbanization: Properties of 1-hour unit hydrograph: Shape: Triangle Peak : 3.6 m³/s occurring 3 hours from the start Base: 10 hours o-index: 7 mm/hour After Urbanization: Properties of 1-hour unit hydrograph: Shape: Triangle Peak: 6.0 m³/s occurring 1.5 hours from the start Base: 6 hours o-index: 4 mm/hour If a design storm has intensity of 40 mm/h, estimate the percentage increase in the peak storm runoff and in flood volume due to urbanisation.

A small rural catchment had rapid urbanization over a period. The impact of urbanization on the urban hydrology of the area is reflected in the change occurring in the 1-hour unit hydrograph of the area as follows: Before Urbanization: Properties of 1-hour unit hydrograph: Shape: Triangle Peak : 3.6 m³/s occurring 3 hours from the start Base: 10 hours o-index: 7 mm/hour After Urbanization: Properties of 1-hour unit hydrograph: Shape: Triangle Peak: 6.0 m³/s occurring 1.5 hours from the start Base: 6 hours o-index: 4 mm/hour If a design storm has intensity of 40 mm/h, estimate the percentage increase in the peak storm runoff and in flood volume due to urbanisation.

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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