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News

Daily Update

AMERICA'S TRANSPORTATION AWARDS

STATE DOT NEWS

FUNDING AND FINANCE

RESEARCH AND INNOVATION

INFRASTRUCTURE

HIGHWAYS AND STREETS

ACTIVE TRANSPORTATION

SAFETY

WATER

RAIL

PUBLIC TRANSPORTATION

PLANNING

ENVIRONMENT AND SUSTAINABILITY

AASHTO Journal

EPW Leaders Join Effort for FAST Act Rescission Repeal

Jun 14, 2019
The leadership of the Senate Committee on Environment and Public Works – Sen. John Barrasso, R-Wyo., chairman, and Sen. ...

Hearing Examines Potential 5.9 GHz Spectrum Changes

Jun 14, 2019
A June 12 Senate Committee on Commerce, Science, and Transportation oversight hearing of the Federal Communications Commission brought up ...

Direct from the Source

Releases from AASHTO and State DOTs

Six Western State DOTs Win Prestigious Awards for Projects that Strengthen Communities and Improve Lives

Jun 12, 2019
GLENDALE, AZ—Eight transportation projects from six western state departments of transportation today received top honors in the ...

National Youth Bridge Building Competition Selects 2019 Winners

May 22, 2019
PARK CITY, Utah – Three teams of students from Michigan took home top honors during the 2019 American Association of ...

Survey Finds State DOTs Hiring Next-Gen Workforce to Run Drone Operations

May 20, 2019
Highly-Skilled Workers Deploying Drones to Save Lives, Time, and Money PARK CITY, UTAH – A May 2019 survey by the ...

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AASHTO is a great association. I believe in the issues we stand for and I love working for the state DOTs. They are the ones that build, operate and maintain the facilities that are the backbone of our transportation system.

Jim TymonAASHTO Executive Director

Featured Publication

  • A Policy on Geometric Design of Highways and Streets, 7th Edition, Single User PDF Download

    MBI-2 Cover Final_TTV
    A Policy on Geometric Design of Highways and Streets, 7th Edition, 2018, commonly referred to as the “Green Book,” contains the current design research and practices for highway and street geometric design. This edition presents an updated framework for geometric design that is more flexible, multimodal, and performance-based than in the past. The document provides guidance to engineers and designers who strive to make unique design solutions that meet the needs of all highway and street .....
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  • AASHTO LRFD Bridge Construction Specifications, 4th Edition

    MBI-2 Cover Final_TTV
    The AASHTO LRFD Bridge Construction Specifications are intended for use in the construction of bridges. The specifications employ the Load and Resistance Factor Design (LRFD) methodology, and are designed to be used in conjunction with the AASHTO LRFD Bridge Design Specifications. Revisions from the 3rd edition of this title include a complete revision of Section 3, Temporary Works, and changes to Section 10, Prestressing; Section 11, Steel Structures; Section 19, Bridge Deck Joint Seals; and Section 27, Concrete Culverts.
  • AASHTO LRFD Bridge Design Specifications, 8th Edition

    MBI-2 Cover Final_TTV
    These specifications cover the design, evaluation, and rehabilitation of highway bridges. The design provisions of these specifications employ the Load and Resistance Factor Design (LRFD) methodology, which is based on structural reliability theory, and calibrated to achieve a target level of reliability. Updates to this edition include: * A completely updated and revised Section 5 on Concrete Structures (Appendix E5, comparing the 7th and 8th Edition versions of this Section can be downloaded below) * New, simplified steel .....
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  • Manual for Assessing Safety Hardware, Second Edition, Single User PDF Download

    MBI-2 Cover Final_TTV
    This manual encourages consistency in testing and evaluation of roadside safety features. It includes a new matrix for cable barrier testing on slopes, modifications to several test vehicle dimensions, and updated test documentation requirements.
  • Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards, Single User Web-Based One-Year Subscription

    MBI-2 Cover Final_TTV
    The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities. They are available as a one-year online subscription. When you subscribe, you will automatically receive access to all updates published during your subscription period, as well as access to recent past editions, with changes between editions highlighted for ease of reference. The Materials Standards are updated three times per year, in mid-April, mid-June, and at the .....
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About AASHTO

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 transportation modes, including air, highways, public transportation, active 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.