“…Typically, the pile walls are thicker at the mudline due to higher axial and bending stresses in that area . Cunningham and Naughton (1977) discussed design aspects for a 1,255-ft (382-m)-long, 4-ft (1.2-m)-diameter, 50-ksi (345-MPa) yield stress pipe pile driven to 375 ft (114 m) penetration. Wall thickness at the mudline was 3 in.…”