That doesn’t make sense. The sticky bombs were explosives in a sock covered in grease, explicitly to stick to the treads of a tank and disable it. The guys arming the bridge used the same explosives just not with the sock and grease, because why would they?
The bridge was rigged to blow before Hanks and crew got there.
Hanks asks whether they have explosives, gets told that they have enough Comp B “to blow the bridge twice,” then explains the sticky bomb. Then you see the grunts REMOVING the extra Comp B that already was placed under the bridge for use in making the sticky bombs.
Ooh, good memory! I’d forgotten that the sticky bombs came from the already-wired bridge.
There’s a movie about the 82nd Airborne’s battle for the La Fiere bridge that’s scheduled for this year. Titled “No Better Place to Die” and written & directed by Dale Dye. I think this battle heavily influenced Spielberg for the SPR bridge battle.