Check a single column to support an $11in.$ reinforced concrete column. The unfactored axial dead load $=135$ kips, and the unfactored axial live load $=125$ kips. The base of the footing is $3ft$ below grade. The allowable soil bearing pressure is $3000l\frac{b}{f}{t}^2.$ Material strengths for the footing are $f_c=3000$ psi and $f_k=60,000.$ Footing area is $12ftx12ft.$ Footing thickness is $30$ inches. Footing bottom reinforcement is $13$ #$8$s each way. Check; a$)$ Bearing Capacity, b$)$ Punching Shear, c$)$ one way shear, and d$)$ flexure at face of column.

$f_c=3000$

$f_y$:$=60000$ psi

${}_f$:$=0\mathrm{.}90$

$=0\mathrm{.}85$

${}_r=0\mathrm{.}75$

$D$:$=135$ kip

$L$:$=125$ kip

${}_{\text{s}\text{o}\text{l}\text{l}}$:$=120pcf$

$q_b$:$=3000psf$

${}_c=150pcf,$:$=1\mathrm{.}0$

$P=D+L=260$kip

$P_u=1\mathrm{.}2D+1\mathrm{.}6L=362$kip

There was a typo for P and Pu