$15\mathrm{.}2.$ An interior column for a tall concrete structure carries total service loads $D=500$ kips and $L=514$ kips. The column is $2222$ in$.$ in cross section and is reinforced with $12$ No$.11($No$.36)$ bars centered $3$ in$.$ from the column faces $($equal number of bars each face$).$ For the column, $f_c^{\text{'}}=4000$ and $f_y=60,000.$ The column is supported on a square footing, with the bottom of the footing $6ft$ below grade. Design the footing, determining all concrete dimensions and amount and placement of all reinforcement, including length and placement of dowel steel. No shear reinforcement is permitted. The allowable soil bearing pressure is $8000psf.$ Material strengths for the footing are $f_c^{\text{'}}=3000$ psi and $f_y=60,000$ psi.