This is What a Suspension Bridge Sounds Like When it Moves
This is so cool and kind of scary at the same time
So we have the Mackinac Bridge which is a huge suspension bridge, the world's 24th longest suspension bridge and the 3rd longest in North America. So we know that suspension bridges move when it's windy, but did you know that they also make quite a unique sound when they're moving? At least this one does.
Back on November 30th, Jill Rock posted a video on Facebook of the Verrazano-Narrows Bridge in New York City, which connects Staten Island to Brooklyn, moving in inclement weather. In the video, you can see the suspension bridge moving up and down, which is creepy, but the real creep factor comes from the sound the bridge made while moving.
Take a listen.
It reminds me of the sounds that the aliens in 'War of the Worlds' made, or from Game of Thrones when the White Walkers were making their moves south.
According to the Mackinac Bridge Authority, the Mackinac Bridge is designed to swing and sway during windy weather, changes in temperature, and weight. Their website says that the center deck span of the bridge is designed to move as much as 35 feet both east and west to accommodate the wind, but they say that only would happen during "severe wind conditions."
This particular bridge was really moving and some in the comments think it's because of the construction that has been happening. I reached out to Jill, who posted the video, and she said that she has worked for MTA Bridges and Tunnels, who manages the bridge, for 20 years and it's the first time that the Verrazzano-Narrows Bridge has ever moved that much, and made so much sound. She also confirmed it's probably because of the recent construction, in which crews replaced the decking with lighter decking that's also not supposed to get potholes, and they think that's why it was so active that day.