What year was the St. Louis arch completed?

Oct. 28 1965What year was the St. Louis arch completed?
i dont know 60's 70;s some where in there
Construction on the nation's tallest memorial began in 1961 with the "topping out" in 1965 and dedication in 1966.What year was the St. Louis arch completed?
Entrance ramps at the north and south bases of the Arch lead down into the subterranean visitor center and Museum of Westward Expansion, finished in 1976. Inside, a large pool is centered at the core directly below the apex of the Arch. The pool was added in recent years. Most of the square footage below ground is taken up by the museum. Some area is used for administrative offices and for mechanical systems.
the jefferson national expansion memorial (aka the gateway arch) was completed on october 28, 1965. the architect was Eero Saarinen
It was in the 1970's

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