Centennial School District Administration Building at Swan Way

Centennial School District acquired an existing 31,580-SF building to renovate into a district administration and conference center.  The space was programmed to accommodate classrooms, conference rooms, the district board room, tax office and the district’s administration offices.  The base bid design relied on maximizing the original mechanical infrastructure, but the alternate design upgraded the equipment for energy efficiency.  Architectural design was done by Crabtree Rohrbaugh & Associates – Architects.


  • Mechanical, Electrical and Plumbing Engineering & Fire Protection
  • Site/Civil Engineering
  • Environmental Consulting
  • Forensics Building Investigation
  • Structural Engineering

ArtsQuest Center at SteelStacks

ArtsQuest Center at SteelStacks, the redeveloped Bethlehem Steel industrial site in Bethlehem, PA, provides dynamic performance and gallery space. Conceived to provide multiple simultaneous entertainment experiences, the 67,000 SF building required Isett structural engineers to design wide open spaces without column supports, enhancing traffic flow and sight lines.  The “bones” of the building became part of the architectural design.  The exposed I-beams are painted “International Orange” as a nod to the Golden Gate Bridge, whose steel was manufactured at the Bethlehem Steel blast furnaces adjacent to ArtsQuest.  ArtsQuest Center hosts hundreds of events each year and is an integral hub for more than a dozen festivals, including the nine-day summer Musikfest, and Christkindlemart, a five-week celebration.

The American Institute of Architects Pennsylvania awarded Spillman Farmer Architects, the building's designers, a Silver Medal which is the organization's highest honor.