AASHTO M 167M/M 167-09 (2012)

This specification covers corrugated steel structural plate, zinc-coated, used in the construction of pipe, pipe-arches, arches, underpasses, and special shapes for field assembly. Appropriate fasteners and accessory materials are also described. The pipe, arches and other shapes are generally used for drainage purposes, pedestrian and vehicular underpasses, and utility tunnels.This specification does not include requirements for bedding, backfill, or the relationship between earth cover load and plate thickness of the pipe.