Bridge Welding Code 1. General Provisions 1.1 Application 1.1.1 This code covers welding fabrication requirementsapplicable to welded highway bridges. It is to be used in conjunction with the AASHTO Standard Specification for Highway Bridges or the AASHTO LRFD Bridge Design Specifications. The code is not intended to be used for the following: (1) Steels with a minimum specified yield streng