Each one yes. A dozen in one spot and that section of the bridge is gone.
Hit the column area, yet still, say 10 per column, 2 columns, at least 3 rows of colums, 60 rockets in total.
(Would take less per column but still, precision isn't 100% accurate)
And that's at the very least. Maybe the bridge of Crimea is the only worthy strategic object.
(If we got such expenses in mind)
At the same price, say 100 of Himars rockets, where we could use it with higher efficiency ?
More ammo deposits storages / warehouses ?
P.s.
Iran using their arses instead of the brain.
Strike while the beast is hurt.
Catch Putin once he landed. Give him to EU/US for tribunal.
Gain Russians as the enemy.
Move from enemy of the west into potential ,,friend" zone.