This bridge is subject to AWS D1.5 code of construction. Inspection was required to be performed by a Canadian welding beurau level 3 welding inspector or recognized equivalent ( amarican welding society certified welding inspector) . That inspection would be the responsibility of the contractor ( graham) if they didn't do it or their inspector did not flag the welds as rejectable in Spain that is on Graham and their inspection company. I don't see Graham having much of a leg to stand on.
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