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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 LRFD-8 Errata 1-2018 PDF
Errata 1 to AASHTO LRFD Bridge Design Specifications, 8th Edition. It records the corrections adopte..
AASHTO LRFDBDS-10-2024 PDF
The AASHTO LRFD Bridge Design Specifications, 10th Edition (2024), present national design requireme..
AASHTO LRFDBDS-10-E1-2025 PDF
Errata for LRFD Bridge Design Specifications, 10th Edition. It records the corrections adopted by AA..
AASHTO LRFDBDS-9 Errata-2021 PDF
Errata to LRFD Bridge Design Specifications, 9th Edition. It records the corrections adopted by AASH..
AASHTO LRFDCONS-2-I4-2009 PDF
AASHTO LRFD Bridge Construction Specifications, 2009 Interim Revisions. The revisions set out the ch..
AASHTO LRFDCONS-3-I1-2010 PDF
AASHTO has issued proposed interim revisions to AASHTO LRFD Bridge Construction Specifications, Thir..
AASHTO LRFDCONS-3-I2-2011 PDF
AASHTO has issued proposed interim revisions to AASHTO LRFD Bridge Construction Specifications, Thir..
AASHTO LRFDCONS-3-I3-2012 PDF
The 2012 Interim Revisions to AASHTO LRFD Bridge Construction Specifications, Third Edition, 2010, c..
AASHTO LRFDCONS-3-I4-2014 PDF
The 2014 Interim Revisions to AASHTO LRFD Bridge Construction Specifications, Third Edition, 2010, c..
AASHTO LRFDCONS-3-I5-2014 PDF
The 2015 Interim Revisions to AASHTO LRFD Bridge Construction Specifications, Third Edition, 2010, c..