[sspiff]

An M4 Sherman weighed about 35 tons when including fuel, crew and ammunition. So technically, it could hold two, though it would be a risky endeavor.

[rubatuga]

35 tons is close to 70000lbs

[abduhl]

not to be pedantic, but in America 35 tons is exactly 70,000 lbs

[sspiff]

Oops, I misread the comment about the bridge. I would assume German bridges would use metric measures.