10 in the US since 2013.
I-5 at the Skatit River in Washington State
Highway in Scott City, MO
Overpass over I-75 in Ohio
Pennsy Bridge, Pennsylvania
I-10 Southern California
Bob White Bridge, VA
Pfeiffer Canyon Bride, California
I-85 Atlanta
Florida International Bridge
Of course, a couple of those were during demolition operations when they came down a lot faster than planned.
US probably has many more bridges though,
A bit of scale difference as well. Italy looks to be not much bigger than Florida: