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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 LRFDCONS-3-I6-2015 PDF
The 2016 Interim Revisions to AASHTO LRFD Bridge Construction Specifications, Third Edition, 2010, c..
AASHTO LRFDCONS-4 Errata 2-2021 PDF
Errata 2 (2021) to AASHTO LRFD Bridge Construction Specifications, 4th Edition. It records the corre..
AASHTO LRFDCONS-4-2017 PDF
AASHTO LRFDCONS-4, LRFD Bridge Construction Specifications, Fourth Edition (2017), contains 33 secti..
AASHTO LRFDCONS-4-I1-2020 PDF
The 2020 Interim Revisions to AASHTO LRFD Bridge Construction Specifications, Fourth Edition, 2019, ..
AASHTO LRFDCONS-4-I2-2022 PDF
AASHTO LRFD Bridge Construction Specifications, 4th Edition, 2022 Interim Revisions. The revisions s..
AASHTO LRFDCONS-4-I3-2023 PDF
AASHTO LRFD Bridge Construction Specifications, 4th Edition, 2023 Interim Revisions. The revisions s..
AASHTO LRFDCONS-4-I4-2024 PDF
The 2024 Interim Revisions to the AASHTO LRFD Bridge Construction Specifications, Fourth Edition, is..
AASHTO LRFDFRP-1-2012 PDF
These specifications present provisions for the analysis and design of concrete-filled fiber-reinfor..
AASHTO LRFDLTS-1-2015 PDF
AASHTO LRFDLTS-1, LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Tra..
AASHTO LRFDLTS-1-I1-2016 PDF
The 2017 Interim Revisions contain updated information to the LRFD Specifications for Structural Sup..