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.
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?
Meriwether Lewis took his Newfoundland dog Seaman on the Lewis and Clark expedition? Seaman made the entire trip with the Corps and is credited with waking the members when a bison entered the camp and almost trampled them. Click here to learn more about Lewis and Clark.
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