The Gateway Arch is a 630-foot-tall (192 m) monument in St. Louis, Missouri, United States. Clad in stainless steel and built in the form of a weighted catenary arch, it is the world's tallest arch and Missouri's tallest accessible building. The Arch was designed by Finnish-American architect Eero Saarinen in 1947; construction began on February 12, 1963, and was completed on October 28, 1965, at an overall cost of $13 million.[1]
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The Gateway Arch is featured in Heavy Metal.
First appearing in 10 years after people giving an introduction to the viewers. Given by the show information, it is known as the tallest structure in the city at 63 stories. The show criticize the quote from Eero Saarinen who designed it to be stand for 1,000 years, as it looks vulnerable due to its slender form. But the show has mention the advantage of the survivability of the structure where it doesn't have steel skeleton and use the strength of double walls of stainless steel plates filled with concrete. Gordon Masterton stated that stainless steel corrodes at the very slow rate. The surface is covered with the film of chromium oxide and can resist corrosion for decades. Bob Moore stated that the Gateway Arch doesn't have water intrusion and without water, rust won't form.
The fate of the Gateway was set to revealed in 250 years when the stainless steel of the Gateway Arch have been worn off by corrosion. Gordon Masterton stated that the final failure would be the center of the arch at the top. The show then give another information, the key piece that created the 2 sections are the keystone, 17 feet long by 18 feet high and the last pieces to be installed. Before the piece were lifted on October 28, 1965, it was blessed by a Roman Catholic priest and a rabbi. The keystone is the last piece to be installed and it is so critical that a temporarily stabilizing truss was used to keep the 2 legs from collapsing. And so after 250 years, the keystone buckles. Bob Moore stated that the two legs wouldn't be able to stand on their own and would fall to the ground. Once the keystone falls, the rest of the Gateway Arch soon follows causing a collapse.
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