Attorney obtained summary judgment on behalf of an engineering firm supervising bridge work on a highway interchange in . The claim was for wrongful death of a worker involved in sandblasting and repainting an existing bridge. While working in a containment system below the bridge, he stepped into a hole within the containment platform, falling to his death. The defense was predicated on the application of horizontal immunity under the revised state Workers' Compensation statute. Plaintiffs challenged both the constitutionality and interpretation of the revised statute.