National Steel Bridge Alliance
Find a Bridge Fabricator
AISC full members and certified companies fabricate high-quality, sustainable steel for bridge projects. Looking for a bridge fabricator in your region? Use our interactive map to find AISC bridge fabricator full members and certified companies based on their location and certification category.
Steel Bridge Design Handbook
It's here! The 2022 edition of the Steel Bridge Design Handbook (formerly known as the Highway Structures Design Handbook) is now available as a free download. The new version includes the latest research and advice from the nation's top bridge experts as well as critical information on everything from the mechanical properties of steel to splice design to corrosion protection.
NSBA Guide to Navigating Routine Steel Bridge Design
AASHTO LRFD Bridge Design Specifications, 9th Edition
This guide is intended to complement the AASHTO LRFD Bridge Design Specifications (AASHTO LRFD BDS) and addresses the design of steel superstructures for "routine steel l-girder bridges." It illustrates which provisions of the AASHTO LRFD BDS are applicable to the design of these types of structures, and perhaps more importantly, which provisions are not applicable or are only partially or conditionally applicable.
If a given bridge somehow falls partially outside the limits of the definitions of a "routine steel l-girder bridge" or outside the exclusions of this scope, this guide may still provide value to designers. The purpose of this guide is to help engineers streamline the design process, avoid unnecessary or misguided effort, and simplify their approach to the necessary tasks associated with the design of a more routine steel l-girder bridge.
Steel Span to Weight Curves
Need a quick estimate for steel bridge superstructure weight? Then look no further than the NSBA's "Steel Span To Weight Curves". They are a great way to compare various span arrangements and girder spacings on the back-of-an-envelope.
Steel Bridge Design Workshop
Thanks for making our Virtual Steel Bridge Design Workshop a great success! Video recordings and handouts from each of the sessions are now available.