Specifically, it was a memorial to Thomas Jefferson, the pioneers, and Dred Scott. The Gateway Arch National Park was designed to represent the role the city played in the United States expanding west in the 19th century. The Gateway Arch National Park, formerly known as the Jefferson National Expansion Memorial, is located near the starting point of the Lewis and Clark Expedition on the banks of the Mississippi River in downtown St. National Park-Landmark Pedestrian / Bicycle / Light Rail Transit Department of Transportation, National Park Service Louis, Bi-State Development Agency, CityArchRiver Foundation, U.S. Gateway Arch Park Foundation, Missouri Department of Transportation, Great Rivers Greenway District, City of St. Your design doesn't have to be as grand as the Gateway Arch, but it should reflect in its design the essence of what is being memorialized.Caption: The Gateway Arch construction completed in 1965, stands 630 feet tall, and is the tallest structure in Missouri. What famous people and events make your home city, county, or state unique? Choose one aspect that you think deserves a memorial, and then put pen to paper to design a suitable memorial. What kind of memorial would you design if you had the chance? Think about the area where you live.Want to get a better idea of what the Gateway Arch looks like? Explore the National Park Services' page with a live webcam and several exhibit tours.Keep exploring by checking out the following activities with a friend or family member: We hope you enjoyed learning more about the history and engineering of the Gateway Arch. The Gateway Arch was designated a National Historic Landmark in June 1987. About one million of those visitors make the trip to the top to enjoy the observation deck. Today, it hosts more than four million visitors every year. Since it opened to the public in June 1967, the Gateway Arch has become an internationally-famous tourist destination. The cross-sections of the Arch's legs are equilateral triangles, and its overall geometric form was first set forth by a mathematical equation provided by Bandel. The Gateway Arch is particularly interesting to mathematicians. However, a 50-mile-per-hour wind will only move the structure a little more than an inch. It's designed to be able to sway as much as 18 inches. On a clear day, you can see approximately 30 miles!Īlthough its beautiful design might make the Gateway Arch appear to be delicate, its sturdy construction can withstand an earthquake. The hollow design reduced the overall weight and allowed for the inclusion of a tram system that transports visitors to the top, where there is an observation deck with 16 windows on each side. It would weigh much more if it weren't mainly hollow. In total, the structure weighs 17,246 tons. Huge cranes and derricks were used to raise the sections into place. Each section resembled a steel triangle that narrowed as they got closer to the top. The Gateway Arch was erected section-by-section (a total of 142 sections) on foundations that are about 60 feet deep. There is also an inner layer of 3/8-inch structural steel with a layer of concrete between the layers of steel. The outside skin consists of ¼-inch stainless steel. The primary construction materials used to build the Gateway Arch were steel and concrete. The total cost to build the Gateway Arch was about $13 million, which would equal about $97 million in today's dollars. Construction began in February 1963 and was completed in October 1965. It's both the tallest man-made monument in the United States and the tallest arch in the world.įinnish-American architect Eero Saarinen and German-American structural engineer Hannskarl Bandel designed the Gateway Arch in 1947. Catenary refers to the shape a free-hanging chain takes when held at both ends.Ĭlad in brilliant stainless steel, the Gateway Arch rises high above the west bank of the Mississippi River at the spot where St. Its shape is that of a flattened catenary arch. The Gateway Arch stands 630-feet high and 630-feet wide. In many respects, it was a gateway to the west, thus the inspiration for the building of the Gateway Arch. Louis played a key role in this expansion. Because of its location along the Mississippi River, St. The Louisiana Purchase added the Louisiana Territory to the United States, opening up vast new lands for westward expansion. As part of the Jefferson National Expansion Memorial, the Gateway Arch stands as a monument to the westward expansion of the United States that occurred after Thomas Jefferson completed the Louisiana Purchase. Louis Arch or simply “The Arch," this structure's actual name is the Gateway Arch. What are we talking about? The Arch, of course! Louis or only seen parts of it on television, you're probably familiar with the architectural marvel that dominates its skyline. Louis, Missouri? If not, perhaps you've seen a televised sporting event, such as a St.
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