Brown & Gay Eng'g, Inc. v. Olivares, 461 S.W.3d 117 (Tex. 2015)
Private engineering firm retained by a governmental entity to design and build a toll road asserted “derivative sovereign immunity” protects it from liability for a three-fatality accident caused by negligent design. The Supreme Court declined to expand the doctrine of governmental immunity to include government contractors, allowed the suit against the engineering firm to proceed.