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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 GPRF-2-2004 PDF
Information presented in this guide is intended to provide a general knowledge of the park-and-ride ..
AASHTO GPVF-2-2022 PDF
The AASHTO Guide for Pavement Friction, Second Edition (2022), provides recommendations for designin..
AASHTO Green Book (GDHS-7)-2018 PDF
AASHTO GDHS-7, A Policy on Geometric Design of Highways and Streets, Seventh Edition (2018), commonl..
AASHTO Green Book (GDHS-7)-2019 PDF
Errata to AASHTO Green Book - A Policy on Geometric Design of Highways and Streets, 7th Edition. It ..
AASHTO GRISES-1-2025 PDF
AASHTO Guidelines for Risk-Based Inspection and Strength Evaluation of Suspension Bridge Main Cable ..
AASHTO GSBSM-1-2018 PDF
These Guide Specifications are intended to provide an analytical framework to evaluate the internal ..
AASHTO GSBSM-1-I1-2022 PDF
The AASHTO Guide Specifications for Internal Redundancy of Mechanically-Fastened Built-up Steel Memb..
AASHTO GSBSM-1-I2-2025 PDF
The Guide Specifications for Internal Redundancy of Mechanically-Fastened Built-Up Steel Members, 1s..
AASHTO GSBSTE-1-2022 PDF
The AASHTO Guide Specifications for Bridges Subject to Tsunami Effects, First Edition (2022), provid..
AASHTO GSBTW-1-I1-2008 PDF
The 2008 interim contains replacement pages to the Guide Design Specifications for Bridge Temporary ..