Does the St. Louis Arch sway?
Does the St. Louis Arch sway? Is the Arch moving? The Arch is designed to sway as much as 18 inches in 150 mile per hour winds and it can withstand an earthquake; however, under normal conditions the Arch does not sway. It takes a 50-mile an hour wind to move the top 1 1/2 inches each side of center.
Can you feel skyscrapers sway in the wind?
Most skyscraper visitors won't notice how much skyscrapers sway, as the movement is designed to be as imperceptible as possible. That being said, individuals who experience motion sickness may be more aware of tall buildings swaying and may need to move to a lower floor to eliminate the swaying sensation.