UPMC Health Plan 6th Floor in U.S. Steel Tower Awarded LEED Gold Posted on July 28, 2020 by David Van der Vossaen Allen & Shariff provided mechanical, electrical, plumbing, and fire protection engineering design services for the 6th floor renovation in the U.S. Steel Tower for UPMC Health Plan. This project was awarded LEED Gold Level Certification for Version 4 Commercial Interiors. This is the 25th certified floor in this building for UPMC. The Design Alliance Architects was the architect. evolveEA was the LEED Coordinator. Winthrop Management is the property manager.