A 4 ft square, 2 ft deep spread footing carries an ASD design column load of 50 k. The edge of
this footing is 1 ft behind the top of a 40 ft tall, 2H:1V descending slope. The soil has the fol-
lowing properties: c′ = 200 lb/ft2
, f′ = 31°, g = 121 lb/ft3
, and the groundwater table is at a
great depth. Compute the ASD factor of safety against a bearing capacity failure and comment
on this design.