The Arch is a giant silver shape. 

The Gateway Arch is a giant silver shape. 


The Gateway Arch is a giant silver monument. 

A man named Eero Saarinen designed it. He was an architect. The shape is a weighted catenary arch. This means the legs are wider than the top. 
People call it the "Gateway to the West." It honors the westward expansion of the United States. The Arch is in a national park. Many people visit to see it. You can ride a tram to the top. 
The Gateway Arch is a huge silver monument in St. Louis, Missouri. 

The Arch has a very special shape called a weighted catenary arch. 


A man named Luther Ely Smith had the idea for this memorial. He visited the riverfront in late 1933. He thought a memorial could help the local economy. He shared his vision with Mayor Bernard Dickmann. They formed a group called JNEMA to make it happen. 
Designing the Arch was a big task that took many steps. 


The Arch connects the past to the present day. It sits on the same land where St. Louis was founded in 1764. Before the Arch was built, there were many old buildings there. Some buildings, like the Old Cathedral, were kept because they were historic. 

The Gateway Arch is a massive stainless steel monument located in St. Louis, Missouri. 

The Arch is built in the form of a weighted catenary arch. This specific mathematical shape means the legs of the structure are wider than the upper section. 


The journey to build the Arch began with a vision for urban renewal. In late 1933, civic leader Luther Ely Smith envisioned a memorial on the St. Louis riverfront. He believed such a project would revive the area and stimulate the local economy. Smith shared this idea with Mayor Bernard Dickmann. Together, they helped form a nonprofit group called the Jefferson National Expansion Memorial Association, or JNEMA. The group aimed to create a memorial that would honor history while providing much-needed work. During the Great Depression, the project was expected to create 5,000 jobs over three to four years. 
Securing funding for such a massive project was a complex process. The JNEMA estimated that construction would require $30 million. They requested that the federal government pay three-quarters of this total, which was $22.5 million. In 1934, Senator Bennett Champ Clark and Representative John Cochran introduced a bill to Congress. While the bill faced opposition, President Franklin D. Roosevelt eventually signed a law to create a federal commission. This commission was tasked with developing the memorial. Later, New Deal agencies like the Public Works Administration and the Works Progress Administration provided significant funding. Specifically, the WPA and PWA together allocated $6.75 million to the project. 
Before the Arch could rise, the site had to be prepared through demolition. The National Park Service acquired historic buildings in the area through a legal process called condemnation. This process was not without struggle, as it led to several legal disputes. Ultimately, the United States Circuit Court of Appeals ruled that the condemnation was valid. By 1939, demolition of the old warehouses and structures began. Most buildings were removed to clear the way, though some were saved for their history. The Old Cathedral and the Old Rock House were among the few structures retained.
The design of the Arch was decided through a prestigious architectural competition. In 1945, the JNEMA announced a two-stage contest to find the best design. This competition cost $225,000 to organize, and leaders like Luther Ely Smith worked hard to fund it. In 1947, the Finnish-American architect Eero Saarinen was selected as the winner. Saarinen worked with a talented team to finalize the vision. His team included J. Henderson Barr as an associate designer and Dan Kiley as the landscape architect. Lily Swann Saarinen served as the sculptor, while Alexander Girard worked as the painter. 
Construction of the monument was a major engineering achievement. Work officially began on February 12, 1963. The project was completed on October 28, 1965. The total cost for the construction was approximately $13 million. After construction ended, the monument opened to the public on June 10, 1967. 

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