Figure $(1)$ shows a weir section, constructed on a clayey sand layer where the coefficient of permeability is $1\mathrm{.}8$ x $10^(-3)$m$/$s$.$ For this question, you are required to:

$1)$ Draw the flow net for seepage.

$2)$ Determine the quantity of seepage $($flow rate per meter$)$ in m$^(3)/$s per meter under the dam.

$3)$ Plot the distribution of uplift pressure in kPa on the base of the weir base.

$4)$ Determine the uplift force in kN per unit length of the weir.

$5)$ Plot pore pressure $($ kPa $)$ diagrams along lines A$-$B and C$-$D as per below information and Figure $(1)$:

a$.$ Pints $($A$)$ and $($C$)$ are located $3$ m below the weir base, and

b$.$ Lines $($AB$)$ and $($CD$)$ are vertical.