> liability for failures in a design remains fully with that design’s engineer of record > So if a bridge fails because the supplier of rebar messed up the hea

> liability for failures in a design remains fully with that design’s engineer of record > So if a bridge fails because the supplier of rebar messed up the heat treatment Is a failure of a bridge necessarily a failure in a design? Or do we distinguish between a physical project which uses a design from the design itself? If the materials were bad, whether or not the construction team had some responsibility to re-test those materials prior to using them (is this common?), it doesn't seem like evidence that the _design_ failed.