''Galloping Gertie''

"I tried to run up the yellow line in the center of the roadway, but found myself being bounced from one curb to the other and making no headway towards shore. I felt I could be tossed over the edge at any time. I was running in the air part of the time, because the bridge was moving faster than gravity. It dropped out from under me and then bounced back, knocking me down to my knees, banging the camera on the pavement."

Tacoma Bridge Failure-- a Physical Model (2004)

https://archive.org/details/arxiv-physics0408101