BD – 637M (Step 1) ABC Details for Precast Rigid Frames, The standard gives details and design criteria for development of the design of Precast Concrete Rigid Frame Structures that could be used during an Accelerated Bridge Construction Project.

We encourage members to review this and provide feedback and comments to Aaron Hoover by Friday, January 26, so a compiled comment list can be submitted to PennDOT by their deadline of January 31.