AASHTO M 167M/M 167-09
1. SCOPE
1.1. This specification covers corrugated steel structural plate, zinc-coated, used in the construction ofpipe, pipe-arches, arches, underpasses, and special shapes for field assembly. Appropriatefasteners and accessory materials are also described. The pipe, arches, and other shapes aregenerally used for drainage purposes, pedestrian and vehicular underpasses, and utility tunnels.
1.2. This specification does not include requirements for bedding, backfill, or the relationship betweenearth cover load and plate thickness of the pipe. Experience has shown that the successfulperformance of this product depends upon the proper selection of plate thickness, type of beddingand backfill, manufacture in the plant, and care in the installation. The purchaser must correlatethe above factors and also the corrosion and abrasion requirements of the field installation with theplate thickness. The structural design of corrugated steel structural plate pipe and the properinstallation procedures are described in AASHTO Standard Specifications for Highway Bridges,Division I, Section 12 and Division II, Section 26, respectively.
1.3. The values stated in either SI units or inch-pound units are to be regarded separately as standard.Within the text, the inch-pound units are shown in brackets. The values stated in each system arenot exact equivalents; therefore, each system shall be used independently of the other. Combiningvalues from the two systems may result in nonconformance with the specification.