SCI Phoenix State Correctional Facility: Skippack, PA


Client: Pennsylvania Department of Corrections/Pennsylvania Department of General Services
Project: New Construction – State Correctional Facility
General Contractor: Walsh-Heery Joint Venture
Floor Area: 1,000,000 sf


Design/Build & Value Engineering


Engineer of Record
Mechanical Construction Manager
Installing Contractor


– Our design will save the PA DOC $1M per year.
– Energy modeling shows that our design results in a building that is >45% more efficient than an AHSRAE 90.1-2007 baseline building.
– Energy analysis demonstrated that the Wiegmann Associates design will save the owner more than $1M more than the difference in other mechanical bids over the 20 year life of the system.


The SCI Phoenix Correctional Facility is a replacement facility for one of the largest state correctional facilities in Pennsylvania. The new facility spans more than 25 buildings, including 15 inmate housing, support and administrative buildings.

This type of facility requires high amounts of ventilation air, which in turn drives energy usage.  Our challenge was to provide the correct amount of ventilation air while optimizing energy performance.  Our unique design solution and proper selection of equipment will achieve optimal energy savings.