Use AASHTO $93$ method to design the pavement structure shown below with the resilient moduli, layer coefficients, and drainage coefficients as shown. If predicted ESAL$=18\mathrm{.}6$ESAL$=18\mathrm{.}6{10}^6,R=95\%,S_0=0\mathrm{.}35,$ and $\frac{\frac{?}{{?}_{\frac{?}{?}}}}{P}SI=2\mathrm{.}1,$ select thicknesses $D_1,D_2,$ and $D_3.)=(6\mathrm{.}9$kPa.

$2-$ Assume that problem #$1$ the seasonal high ground water $(SHGW)$ table was $3$ftbelow the subgrade level, solve problem #$1$ again following FDOT recommendations in the cases if the $SHGW$ was $2ft$ below the subgrade level.

$3-$ Solve problem #$1$ again following FDOT recommendations in the cases if the SHGW was $1ft$ below the subgrade level.