Frontenac Engineering
314-644-2200

Gateway Arch

Gateway Arch

I’ve lived in St. Louis my whole life except for a short period that was spent studying abroad in college. I’ve traveled here and there. When I look out the plane or  car window and catch a glimpse of the Arch, I know I am almost home.

Standing at 630 feet tall, the Gateway Arch is the tallest stainless steel monument in the world. This famous symbol of St. Louis opened as monument to the westward expansion of the U.S. in 1967.

As with any structure, repairs and upgrades need to be made. We were contacted to provide the structural engineering services for the elector motor upgrade project at the Jefferson National Expansion Memorial Gateway Arch

  • Design of new permanent platform and drive room with ships ladder and catwalk to service elevator
  • Analysis and determination of allowable point and distributed floor loading in the observation deck and tram loading areas at the top of the Arch.
  • Design of work platform(s), related to motor replacement, in stair areas at the top of the Arch. Design of wood cribbing platform, stair covering and motor removal method for bidding guidance.
  • Design of modifications to a vertical support channel to allow for improved access to the tram cow-catcher
    Our sister company, Pitzman's, on site to provide 3D Laser Scanning.

    Our sister company, Pitzman’s, on site to provide 3D Laser Scanning.

    View from the Observation Deck.

    View from the Observation Deck.

    Pitzman's Co 3D Laser Scanning the Observation Deck.

    Pitzman’s Co 3D Laser Scanning the Observation Deck.

    3D Laser Scanning.

    3D Laser Scanning.

    Frontenac Employee taking notes.

    Frontenac Employee taking notes.

    View from inside the Observation Deck in the Arch.

    View from inside the Observation Deck in the Arch.


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