Rigid Shaft Foundation Design User Input ______ Load Factors (Factor_vertical, Factor_lateral) ______ Foundation Geometry (Diameter, Height, Depth, Discounted Depth) ______ Soil Cohesion (Cu) ______ Design Guidance (Bearing?, Skin Friction?) ______ Allowable Bearing Stress ______ Allowable Factor of Safety Output ______ Bearing Stress Ratio ______ Skin Friction Ratio Karl Hoitsma, P.E. (khoitsma)