The values for Sv (vertical spacing) are grouped into two areas in the solution. Depths from 0 to 8 feet and depths from 8 to 16 ft for the 16 ft wall. Calcs were made at 8 ft, 12 ft, and 16 ft, results give needed Sv of 33.6 in, 22 in, and 16.8 in, respectively.
Estimates were made such that...