A square footing, 5 ft by 5 ft, is to be constructed in a uniform clay deposit.
The geotechnical investigation reveals the undrained shear strength of the clay is 1,500 psf, the unit weight of the soil is 120 pcf, and the footing will be placed 4 ft below the ground surface.
Using Terzaghi's bearing capacity theory, what is the ultimate bearing capacity (q_ult) of the shallow foundation? (Bearing capacity factors for a square footing: Nc=7.4, Nq=1.6, Nγ=0.0)
