Observing the Comcast Technology Center After the Topping Out of the Concrete Core

Comcast Technology Center under construction July 2016. Photo by Thomas KoloskiComcast Technology Center under construction July 2016. Photo by Thomas Koloski

The majority of Philadelphia’s tallest skyscrapers stand in Center City to the west of City Hall, which include the Comcast Technology Center at 1800 Arch Street. The supertall, which is the tallest building in the city, has risen into the skyline between 2014 and 2017. Designed by Foster + Partners, the tower’s structure is compromised of a central concrete core surrounded with a steel frame, with the facade mostly clad in glass and metal. The tower was developed by Liberty Property Trust, which collaborated with Comcast to erect their second tower in the city. In this article, Philadelphia YIMBY takes a look back to when the Comcast Technology Center was under construction at the time when the core had just topped out.

Comcast Technology Center under construction August 2016. Photo by Thomas Koloski

Comcast Technology Center under construction August 2016. Photo by Thomas Koloski

The core was under construction from December 2014 to July-August 2016. As the concrete structure grew higher, it became extremely skinny. Construction was conducted via the concrete pump at the top of the core, along with the red crane that was attached to the east side. Scaffolding also surrounded the top, allowing workers to labor around the structure. At the pinnacle, the east and west faces flare out in order to accommodate the water balancing tank.

Comcast Technology Center under construction looking northwest August 2016. Photo by Thomas Koloski

Comcast Technology Center under construction looking northwest August 2016. Photo by Thomas Koloski

In June 2016, the smallest section of the core was under construction as it was nearing the very top. These few floors went up very rapidly over the course of the month, and in July the concrete forms were set up for the final level at the 60th floor. The top slab of the core was poured before the middle of August, and the concrete structure was soon topped out with an American flag at the pinnacle. Steel would follow and cover the core in the next four months.

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3 Comments on "Observing the Comcast Technology Center After the Topping Out of the Concrete Core"

  1. Déjà vu.

    You’ve written about this before.

    I’m sure Gabriel will show up to remind us that the Comcast Technology Center is taller than 1,121 feet.

    • The other article was on topping out the steel, not the concrete

      • Thomas did a remarkable job documenting the rise of Arthaus including an exclusive construction tour.

        Comcast finished their towers years ago, we’ve got to move on to the current construction projects going on today.

        We have been blessed with some details on the Riverwalk towers.

        What I want to see is a construction tour of the Laurel. 😉

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