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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 269-96 PDF
This specification covers forged turnbuckles, with and without jam nuts, and shackles for guardrail,..
AASHTO M 270M/M 270-23 PDF
This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and ba..
AASHTO M 271-02 PDF
This standard established minimum levels to which steel surfaces are to be cleaned by blast methods ..
AASHTO M 273-22 PDF
This specification covers single-cell, precast reinforced concrete box sections with less than 2 ft ..
AASHTO M 273M-17 PDF
AASHTO M 273M-17 covers single-cell, precast reinforced concrete box sections with less than 0.6 m o..
AASHTO M 274-87 PDF
This specification covers steel sheet used in the fabrication of corrugated steel pipe (CSP) used fo..
AASHTO M 275M/M 275-20 PDF
AASHTO M 275M/M 275-20 covers uncoated high-strength steel bars intended for use in pretensioned and..
AASHTO M 277-06 PDF
This specification covers steel wire rope for use in movable bridges. Both operating and counterweig..
AASHTO M 278-22 PDF
This specification covers the requirements and methods of test for smooth-wall perforated and unperf..
AASHTO M 279-14 PDF
This specification covers metallic-coated steel fence fabric having a series of horizontal (line) wi..