• Looking up at the Gateway Arch

    Jefferson

    National Expansion Memorial Missouri

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  • Pedestrian Access to the Gateway Arch From Downtown

    Pedestrian traffic on the Chestnut, Market St. and Pine St. bridges will be closed. This leaves Walnut St. and Washington Ave. as the Arch grounds points of entry to and from the city. See link for maps. More »

Arch Architecture

View of the rising Arch facing east, 1963
The architecture of the Arch is one of its most interesting aspects. Learn more about the materials and techniques used in the construction of the Arch in a detailed account by J.E.N. Jensen, Associate Director of the National Park Service. Equally fascinating is the story of the Arch's architect, Eero Saarinen as well as the mathematical equation used to create the catenary curve shape of the Arch.
 
 
Time lapse slide show of the construction of the Arch.
The image on this page is an animated image of the construction of the Gateway Arch between February 29, 1964 - October 28, 1965. There are nine images in this animation that show the Arch at different points during its construction.

Did You Know?

The Gateway Arch

The Gateway Arch at Jefferson National Expansion Memorial is 630 feet high and the span of the legs at ground level is 630 feet across. Click here to learn more about the Gateway Arch. More...