America's Top Transportation Projects Competing For Final National Awards

Online Voting Now Underway for People's Choice Award and $10,000 Prize


AASHTO Annual Meeting - Register Today!


FAST Act Implementation

Your resource on MAP-21 reauthorization and implementation of the Fixing America's Surface Transportation (FAST) Act.


AASHTO Bookstore

Visit AASHTO's Bookstore to browse and purchase all AASHTO publications. Become an E-Affiliate: AASHTO E-Affiliates are eligible for free domestic shipping on all orders placed via the AASHTO online bookstore.



A unique and powerful enterprise software suite designed by transportation professionals for transportation professionals.



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AASHTO Journal

GAO: State DOTs Raise Concerns About Funding Levels to Improve Bridge Conditions

Sep 23, 2016
The U.S. Government Accountability Office said officials from a number of state departments of transportation and local agencies have told GAO staf...

Obama Touts Safety Potential as NHTSA Unveils Policies on Self-Driving Vehicles

Sep 23, 2016
Saying that self-driving cars could save tens of thousands of lives each year, President Obama announced that his administration was introducing a ...

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Direct from the Source

Releases from AASHTO and State DOTs

America's Top Transportation Projects Competing For Final National Awards

Sep 9, 2016
​Online Voting Now Underway for People's Choice Award and $10,000 PrizeWASHINGTON - The American Association of State Highway and Transportation Of...

AASHTO and FHWA Sign Long-term Agreement to Promote Environmental Excellence in Program and Project Delivery

Aug 31, 2016
​WASHINGTON – The American Association of State Highway and Transportation Officials was today awarded by the Federal Highway Administration a five...

National Competition Recognizes Five Southern States for Excellence in Transportation Infrastructure

Aug 30, 2016
WASHINGTON – The departments of transportation of five states – Arkansas, Florida, Georgia, Kentucky and Tennessee – won awards today in a national...
​In this Safety First Video on Transportation TV—we explore why the National Safety Council is predicting America could experience its deadliest Labor Day weekend since 2008. Americans are driving...
Posted: Sep 1, 2016
​This TTV Special Report takes you into the fast developing world of international freight. Join a tour organized by the American Association of Port Authorities—for journalists, congressional staff...
Posted: Aug 23, 2016
​In this Transportation TV News Update we take you to USDOT headquarters in Washington, for a celebration marking a milestone in a program designed to save lives. Deputy Federal Highway Administrator...
Posted: Aug 12, 2016

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Multi-modal design philosophies have been described using a variety of names, including context sensitive solutions; practical design and complete streets. Regardless of the name, the ultimate goal is always to design a safe transportation system that supports a greater quality of life and robust economy.

Bud WrightAASHTO Executive Director

America’s Transportation Awards showcase the outstanding transportation projects that improve travel and quality of life in the United States. Through these awards, we recognize state DOTs for their diligent efforts to help improve the quality of life and economic prosperity in communities across the country.

Paul TrombinoAASHTO President, and Director, Iowa DOT

Featured Publication

Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and the AASHTO Provisional Standards, 2016 Edition, (The “Materials” Book)


HM2016 WebAASHTO Publications just released its third 2016 update to the Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and the AASHTO Provisional Standards, 2016 Edition (The “Materials” Book). This update includes 18 new and 21 revised specifications, and revises the sections on Geotechnical, and Bituminous Materials and Mixtures.

Two previous updates were released earlier this year—in April and June. The April 2016 update included three new and 13 revised specifications, and revised the sections on Hydraulic Cements, Hydraulic Cements, Concrete, Concrete-Related Materials, Pavement Serviceability, Environmental Quality, Quality Assurance. The June 2016 update included one new and six revised specifications, and revised the section on General Manufactured Materials. This latest August 2016 update will be the last update to this publication to be released this year.

The web-based AASHTO Materials Book is available as a one-year online subscription, available as either a single-user or multi-user license agreement. Current subscribers automatically receive access to all updates published during their subscription period, as well as have access to recent past editions, with changes between editions highlighted for ease of reference.

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AASHTO – The American Association of State Highway Transportation Officials – is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all five transportation modes: air, highways, public transportation, rail, and water. Its primary goal is to foster the development, operation, and maintenance of an integrated national transportation system.

AASHTO works to educate the public and key decision makers about the critical role that transportation plays in securing a good quality of life and sound economy for our nation. AASHTO serves as a liaison between state departments of transportation and the Federal government. AASHTO is an international leader in setting technical standards for all phases of highway system development. Standards are issued for design, construction of highways and bridges, materials, and many other technical areas.