. Instead of calculating the increase in internal vertical stress due to overturning at every inextensible reinforcement level, the Simplified Method approximates this stress increase by simply adding 0.2 γz to the soil overburden. However, no stress increase is used with extensible reinforcements. The Simplified Method uses the Coherent Gravity Method's bilinear envelope of maximum reinforcement tension for walls reinforced with inextensible reinforcements and the Rankine failure plane, inclined at 45+φ/2 from the horizontal, for extensible reinforcements. In general, the Simplified Method is the Tieback Wedge Method with Kr/Ka ratios adopted from development of the Structure Stiffness Method.