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

Deadly Hurricane Matthew Closes, Damages Numerous Roads, Triggers Heavy Flooding

Oct 14, 2016
Hurricane Matthew hit the U.S. Southeast hard, from short-term evacuations and road closures in Florida and Georgia to sustained, heavy flooding in...

Manufacturers Propose 'Bold’ Effort to Sharply Boost Transportation Investment

Oct 14, 2016
The National Association of Manufacturers is proposing what it calls an ambitious and bold national policy for the next president and Congress to i...

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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 presentation of View from the Hill, Bud Wright executive director of the American Association of State Highway and Transportation Officials offers his perspective on what the two major presidential...
Posted: Oct 17, 2016
​The primary goal of every transportation department is to make travel safer ---but in 2015 America saw a 7.2% spike in highway deaths—which amounted to 35,092 lives lost. At a Sept. 23, 2016 press...
Posted: Oct 6, 2016
​Americans take 300 million trips on the U.S. Interstate System every day. Getting where we want to go requires a network of reliable roads and bridges and that takes money.#160; How much money...
Posted: Sep 30, 2016

Never Miss an Update

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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.