A square foundation is $2$ m x $2$ m in plan. The soil supporting the foundation has a friction angle of $=20$ and c$=40$ kN$/$m$2.$ The unit weight of soil $\backslash$gamma dry, is $17$ kN$/$m$3.\backslash$gamma sat, is $20$ kN$/$m$3.$ The depth of the foundation is $2$ m$.$ Determine the allowable gross load on the foundation with a factor of safety $($FS$)$ of $3$ when the water table is located $0\mathrm{.}5$ m below the ground surface. Use the general bearing capacity equation.