Not so, said Jeff Moore, a professor of geology at the University of Utah, who called it “just a natural process in the life span of an arch.” A National Park Service statement reassured us ...
What is inside the Gateway Arch ... a carbon steel framework which uses triangle cross-sections. As the arch rises up, the structure narrows from 54 feet at the base to 17 feet at the apex ...
Aside from admiring the arch, visitors can climb to the top and take in the Parisian panorama. Most visitors are wowed by the immense size of the structure and recommend ascending to the top for ...