Solve only Problem $2$

Problem # $2$

For the same layout shown in Problem #$1$ above,

recalculate the design flow for each sewer section

by determining the overland flow using any

suitable method if the information provided Table

$2$ are applicable. The average velocity through

each sewer pipe $=4f\frac{t}{sec}$ and the rainfall

intensity $($in$/$hr$)$ is represented by an $DF$

relationship $i=\frac{100}{t_c+15}$;$t_c$ in minutes.