When it comes to the Northern countries, spring can be quite dangerous. Look at what happened when the frozen river started to melt in Sainte-Marie de Kent, New-Brunswick, Canada. They were lucky the bridge wasn't completely obliterated—it just moved it about three or six feet.
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It happened last week to a little bridge I built last summer.
It moved like 4 meters downstream and got pretty curved in the middle.
It's still functional though.
I'm in Canada too.
The flooding was pretty bad this year.