Local Hot Spot Sees the Benefit of 3D Modeling

Eastern State Penitentiary

Eastern State Penitentiary, Philadelphia, PA

CEDARVILLE Engineering Group, LLC (CEG) was tasked with creating a 3D Reality Model to be used in the design a green stormwater infrastructure retrofit project for this 11+ acre historical penitentiary. Site design requires topographical features be surveyed with accuracy and precision. This site was more complex than usual due to the variety of surfaces constructed through history, and the un-mapped network of underground infrastructure beneath the site.

Survey control was established with a robotic instrument and supplemented with conventional survey. CEG’s sUAS pilot flew NADIR and two oblique flights. Ground based capture was also completed using a handheld camera with a 10mm lens.

Using 3D modeling, all data sets were combined to create one overall 3D model. With this model, CEG could extract information to create a Site Characterization Plan for the client.

The client now has a long-term view of the property that is being used to design stormwater management and the construction of a new visitor’s center to accommodate tourists. The model provides detailed accuracy of the site from both an aerial and surface level perspective. As the historical site undergoes renovation updates can easily be made to the model without the entire survey having to recreate the survey from scratch.


  • Topographic Survey
  • Underground Utility Location
  • Soil Characterization
  • Creation of 3D Model


  • Client: ESP Historic Site Inc.
  • Address: 2027 Fairmount Ave. Philadelphia, PA 19130
  • Date of Completion: 2017

Also see: Eastern State Penitentiary: Civil Engineering Projects

CEG can help you successfully solve your complex surveying projects. Call us today at 610-705-4500 or email info@cedarvilleeng.com.

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Address: CEDARVILLE Engineering Group, LLC 159 E. High Street, Suite 500 Pottstown, PA 19464 Phone: 610-705-4500 Fax: 610-705-4900 info@cedarvilleeng.com

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CEDARVILLE Engineering Group, LLC (CEG)
159 E. High Street, Suite 500, Pottstown, PA 19464
P:610-705-4500 F: 610-705-4900
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