SCI: Chester Prison Design Build

The purpose of this project is to restore existing utility services to a 24-hour a day/7 day a week prison due to existing steam pipe failure.  This project had an overall minority participation (WBE or MBE) of 7.5%.

The design of this project is expected to last a minimum of 20 years and is able to facilitate any future maintenance required.  This project has unique needs including thermal expansion, freeze protection, live loads, dead loads and thrust loads; these along with the site elevation and presence of ground water require our design to account for proper drainage.

The work that was included in our contract was:


  • Engineering
  • Excavation
  • Damp Proofing
  • Utility Work
  • Sidewalk repair
  • Exterior and Interior Wall repair
  • Road Construction
  • Waterproofing
  • Concrete Trench Boxes
  • Piping
  • Coring


This project required coordination with several entities including the State of Pennsylvania, The Department of Corrections (end user), local municipality and our design engineer in regards to permits, street closures and security.  In order to maintain the integrity of the secure facility, our onsite foreman coordinated all subcontractors with the Department of Corrections and with assistance of the main office.

AML performed all piping, and setting of trench boxes with crane lifts and onsite coordination with the design build professional and end user.

SCI: Chester Prison Design Build

  • Department of General Services
  • Project Completion: February 28, 2019

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