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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 SRPG-1-2009 PDF
AASHTO SRPG-1, State Rail Planning Best Practices (November 2009), compiles best practices to help s..
AASHTO SRPG-1S-2016 PDF
AASHTO SRPG-1S, State Rail Planning Best Practices, Volume 2 (2016), is a companion to the First Edi..
AASHTO SS-19 Errata 1-2020 PDF
Errata to 2019 AASHTO Salary Survey. It records the corrections adopted by AASHTO after the parent d..
AASHTO SSFP-17 Errata-2023 PDF
Errata to Survey of State Funding for Public Transportation - Final Report 2023, Based on FY 2021 Da..
AASHTO SSFP-20-2026 PDF
The AASHTO Survey of State Funding for Public Transportation, Final Report 2026, presents survey dat..
AASHTO T 100-22 PDF
This method covers determination of the specific gravity of soils composed of particles smaller than..
AASHTO T 102-22 PDF
This method of test is applicable only to asphaltic products derived from petroleum and should not b..
AASHTO T 103-22 PDF
This method describes three procedures to be followed in testing aggregates to determine their resis..
AASHTO T 104-22 PDF
This method covers the procedure to be followed in testing aggregates to determine their resistance ..
AASHTO T 105-22 PDF
These test methods cover the chemical analyses of hydraulic cements. Any test methods of demonstrate..