$($Points: $10)$ Determine the required concrete slab thickness for a highway designed with the following parameters:

Modulus of elasticity of $5$ million $l\frac{b}{i}{n}^2$

Modulus of rupture of $600l\frac{b}{i}{n}^2$

Design daily truck traffic consisting of: $80$ single axles at $22,5\frac{x}{x}$I $b$ each, $5$ tandem axles at $25,000lb$ each, $50$ tandem axles at $39,000lb$ each, and $80$ triple axles at $48,000lb$ each.

$20-$year design life

$95\%$ reliability

Overall standard deviation of $0\mathrm{.}4$

Drainage coefficient of $0\mathrm{.}9$

DPSI of $1\mathrm{.}7($with a TSI of $2\mathrm{.}5)$

Load transfer coefficient of $3\mathrm{.}0$

Modulus of subgrade reaction of $200l\frac{b}{i}{n}^3$

XX: use the last two digits of your banner ID; for example: @$0$a$123456$: XXX $=56$

Chart is provided to show your work on it$.$