A column of soldiers will never march across a bridge for this reason. The steady oscillation that occurs can, over time cause structural issues with even a well built bridge. It may not actually collapse (although not out of the question) but it can cause serious damage if the marching approaches the resonant frequency.
The classic example of resonant frequency that every engineer has had to watch the video of is the Tacoma narrows bridge. There are also many examples that Tesla explained on this subject.
A common myth, that a large group marching in step could collapse a bridge.
Collapse of Can Tho Bridge happened in 2007.
Maccabiah bridge collapse happened in 1997.
Collapse of Jiujiang Bridge happened in 2007.
Wootton bridge collapse happened on 1861-06-11.
Glanrhyd Bridge collapse happened on 1987-10-19.
Minneapolis.
It will collapse
nope
Sultan Abdul Halim ferry terminal bridge collapse happened in 1988.
Marching in unison across a bridge creates rhythmic vibrations that can amplify with the weight of a large band, potentially exceeding the bridge's load capacity and causing structural failure. This can lead to the collapse of the bridge and poses a serious safety risk to those on it.
The Battle of Lexington took place as the British army was marching on its way to which of the following towns?