Union Station

Washington, DC


Project Square Footage

657,343 s.f.

Market Sector

Aviation + Transportation

Project Type

Public Transportation

Year Completed


In 2012, Amtrak disclosed a plan to renovate the Union Station, located in Washington, DC.This plan would add capacity to the station while preserving the historic site’s distinctive architecture.


Architectural Resource Consultants (ARC) performed an as-built of the historic Union Station in order to provide accurate existing conditions documentation for the major renovations being planned for the facility. ARC conducted 3D HDS (High Definition Survey) Laser Scanning on the interior spaces of the Historic Burnham Building and Concourse A. 

ARC registered the interior scans to the survey control network, unified the data, and produced TruViews. The scanning process for the site’s interior lasted about 11 days.


Once all the scan data was obtained, ARC created an overall 3D model of the building in Revit 2012 and exported it to AutoCAD to create the 2D floor plan deliverables. The scan data was also utilized for historic preservation requirements to prepare a Historic American Buildings Survey (HABS) report.


This project shows ARC’s ability to model complex conditions associated with older structures and historic preservation. One of the significant challenges ARC had to overcome was scanning in a fully operational, high-volume public transportation facility. As such, most of the field operations took place at night.

Here's what our client had to say...

I worked with John and his team on the Union Station project in Washington DC. Both John and his team were a pleasure to work with and very professional. I'm looking for the next project that I can team up with him.

- Dan Schriever

United States

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