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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 LRFDUHP-1-2024 PDF
The AASHTO Guide Specifications for Structural Design with Ultra-High Performance Concrete, First Ed..
AASHTO LRFDUS-4-I1-2008 PDF
The 2008 interim contains replacement pages to AASHTO LRFD Bridge Design Specifications, 4th Edition..
AASHTO LRFDUS-4-I2-2009 PDF
The 2009 interim contains replacement pages for the AASHTO LRFD Bridge Design Specifications, 4th Ed..
AASHTO LRFDUS-5-E1-2010 PDF
Due to errors found after the publication had been completed, this document contains AASHTO errata c..
AASHTO LRFDUS-5-I1-2010 PDF
AASHTO LRFDUS-5-I1 contains the 2010 interim revisions to the AASHTO LRFD Bridge Design Specificatio..
AASHTO LRFDUS-6-E1-2012 PDF
June 2012 Errata to AASHTO LRFD Bridge Design Specifications, Customary U.S. Units, 6th Edition. It ..
AASHTO LRFDUS-7-I1-2014 PDF
These 2015 interim revisions to the AASHTO LRFD Bridge Design Specifications, 7th edition, contain u..
AASHTO LRFDUS-7-I2-2015 PDF
These 2016 interim revisions to the AASHTO LRFD Bridge Design Specifications, 7th edition, contain u..
AASHTO LTS-5-E-2009 PDF
Errata to Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic ..
AASHTO LTS-5-I1-2010 PDF
The 2010 interim contains replacement pages to the Standard Specifications for Structural Supports f..