National Steel Bridge Alliance
AASHTO/NSBA Steel Bridge Collaboration Documents
Guide Specification "S" Documents
Guide Specification "S" documents are written in standard specification language. It is the intent of the Collaboration that these documents be adopted in whole as part of the contract documents to facilitate the achievement of standardization. It is understood that local statues or preferences may preclude full adoption. In those instances, it is the opinion of the Collaboration that as much of the document be referenced as possible.
Guideline "G" Documents
Guideline "G" documents are written as references to be used during the design, fabrication, and construction processes. The documents are a consensus of best practices developed by industry. Referencing the document allows for a common language across all stakeholders, including engineers, owners, fabricators, and erectors.