Determine ultimate bearing capacity of bent 2 where 3-30 in.drilled shafts are supporting this bent. As drilled shafts are spaced far enough, then group effect can be neglected. Please see figure below. Ground Surface Clay Su: 1000 psf Y: 105 pcf Dense Sand $' = 33° y: 125 pcf Abut 1 Bottom of channel Clay Su: 1000 psf y: 105 pcf Dense Sand ' = 33° y: 125 pcf Bottom of channel EL. +510 ft. 10 ft Bent 2 Figure 6 Bridge and Soil Profile Figure 7 Bent 2 EL. + 530 ft. EL. + 450 ft. Abut 3 (Pictur EL. +510 ft. EL. + 450 ft. 3-30 in. Drilled Shafts (Pictu