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AASHTO-American Association of State Highway and Transportation Officials
American Association of State Highway and Transportation Officials (AASHTO) Standards
The American Association of State Highway and Transportation Officials (AASHTO) is a leading organization that develops and publishes technical standards, specifications, guidelines, and industry resources for the transportation sector.
AASHTO standards cover a wide range of applications, including highway design, road construction, bridge engineering, transportation infrastructure, maintenance, public transit, railways, aviation, and water transportation.
Engineers, contractors, transportation agencies, and industry professionals rely on AASHTO publications to support infrastructure planning, design, construction, inspection, and maintenance while promoting safety, quality, and consistency across transportation projects.
At e-Standards Portal, you can explore AASHTO standards, technical specifications, and related publications to find the technical information you need for your engineering and transportation projects.
AASHTO M 175M/M 175-23 PDF
This specification covers perforated concrete pipe intended to be used for underdrainage. This speci..
AASHTO M 176M/M 176-23 PDF
This specification covers porous nonreinforced concrete pipe for use in underdrains. This specificat..
AASHTO M 178M/M 178-23 PDF
This specification covers concrete drain tile with internal diameters from 100 mm (4 in.) to 900 mm ..
AASHTO M 180-25 PDF
Incorporates the March 2026 Errata This specification covers steel components used in non-proprietar..
AASHTO M 181-10 PDF
This specification covers materials used in the construction of fences and gates that comprise (a) c..
AASHTO M 182-05 PDF
This specification covers requirements for burlap made from jute or kenaf and cotton mats for use in..
AASHTO M 190-22 PDF
This specification covers asphalt-coated corrugated metal pipe and pipe-arches intended to be used f..
AASHTO M 194M/M 194-23 PDF
AASHTO M 194M/M 194-23 is identical to ASTM C494/C494M-19 ε1 except for the provisions specified in ..
AASHTO M 195-22 PDF
This specification covers lightweight aggregates intended for use in structural concrete in which th..
AASHTO M 196-16 PDF
AASHTO M 196-16, Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains, covers c..