Mind Teaser\ Let's start by solving a simple problem:\ A storm sewer needs to drain an area of 37.4 acres or

15.1h

peak rate of runoff to the rate of rainfall on the area is assumed to be 0.6 .\ Start by determining the peak flow from the catchment\ Determine the required cross-sectional area of pipe\ Determine the diameter of the pipe\ Civil Engineer Deartment

Mind Teaser - Let's start by solving a simple problem: A storm sewer needs to drain an area of 37.4 acres or 15.1 ha How large must this drain be if it is to carry away rain falling at a rate of 2in.h(51mm/h) during 30min, the time needed for the entire drainage area to become tributary to the sewer? The required velocity of flow is to be 3ft/s(0.9m/s), and the ratio of the peak rate of runoff to the rate of rainfall on the area is assumed to be 0.6 . - Start by determining the peak flow from the catchment - Determine the required cross-sectional area of pipe - Determine the diameter of the pipe Dr Abrar Hawis | CivilEngineering Department I University of Bahrain