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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 MBE-3-E2-2021 PDF
Errata 2 (2021) for the Manual for Bridge Evaluation, 3rd Edition. It records the corrections adopte..
AASHTO MBE-3-I1-2018 PDF
These 2019 interim revisions contain updated information to the Manual for Bridge Evaluation, 3rd Ed..
AASHTO MBE-3-I2-2020 PDF
These 2020 interim revisions contain updated information to the Manual for Bridge Evaluation, 3rd Ed..
AASHTO MBE-3-I3-2022 PDF
Manual for Bridge Evaluation, 3rd Edition, 2022 Interim Revisions. The revisions set out the changes..
AASHTO MBE-4-2026 PDF
The AASHTO Manual for Bridge Evaluation, Fourth Edition (2026), provides bridge owners and agencies ..
AASHTO MBEI-1-I1-2014 PDF
This 2015 interim revision contains updated information to the Manual for Bridge Element Inspection,..
AASHTO MBEI-1-I2-2017 PDF
This 2018 interim revision contains updated information to the Manual for Bridge Element Inspection,..
AASHTO MBEI-2-2019 PDF
AASHTO MBEI-2, Manual for Bridge Element Inspection, Second Edition (2019), provides the element-lev..
AASHTO MBEI-2-I1-2022 PDF
These 2022 Interim Revisions complete the implementation of the inclusion of visual guides, particul..
AASHTO MBEI-2-I2-2024 PDF
These 2024 Interim Revisions contain changes to: Section 2: Element Location Matrix (2.2.1); Section..