Problem $4$: $(20$ points$)$

The following data are given for the figure below:

$H_1=2$ feet

$H_2=11$ feet

$L=18$ feet

$H_2\mathrm{.}9$ feet

$k($Permeability of the soil beneath the hydraulic structure$)=0\mathrm{.}5f\frac{t}{m}in$

Determine:

The flow $($q$)$ in Gallons per day per foot of the width of the structure.

The pressure at point $A.$

$($BONUS $-$ Will be considered in your final grade of the course$)$ The uplift force

$($per foot width of the structure$)$ beneath the structure due to the upward water

pressure.