June 10, 2023
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The American Association of State Highway and Transportation Officials recently issued 2022 Interim Revisions to its “Guide Specifications for LRFD Seismic Bridge Design, 2nd Edition,” publication, originally published in 2011.

[Above image by AASHTO]

AASHTO made specific changes to the following specification sections within that publication: Section 3 General Requirements; Section 4 Analysis and Design Requirements; Section 5 Analytical Models and Procedures; and Section 6 Foundation and Abutment Design.

AASHTO said it is necessary to have those 2022 updates – as well as the interim revisions issued in 2012, 2014, and 2015 – in order to have all current specification information on hand.

To purchase a copy of these 2022 Interim Revisions, visit the online AASHTO Store or click here for a direct link to the publication.


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