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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 R 54-14 PDF
This practice provides guidance and example specification language intended for use by Owner-Agencie..
AASHTO R 56-14 PDF
This practice describes a certification procedure for test equipment used to measure a longitudinal ..
AASHTO R 57-14 PDF
This practice describes the procedure for operating and verifying the calibration of an inertial pro..
AASHTO R 58-22 PDF
This method describes the dry preparation of soil and soil–aggregate samples, as received from the f..
AASHTO R 59-22 PDF
This practice covers the recovery, by the Abson Method, of asphalt binder from a previously conducte..
AASHTO R 60M/R 60-23 PDF
This method covers the procedures for obtaining representative samples of fresh concrete as delivere..
AASHTO R 61-12 PDF
AASHTO R 61-12 (2020) contains general criteria and guidelines for establishing requirements for equ..
AASHTO R 62-13 PDF
This practice describes testing and analysis fo rdeveloping a dynamic modulus master curve for hot m..
AASHTO R 63-13 PDF
AASHTO R 63-13 (2021) provides guidance to engineers in the specification of HDPE conduit used in bu..