Which bridge, exactly, are you on?
If it's the first one, where it blows up as you approach it, you have to make the jeep go faster by holding down Shift.
If it's the second one, where there are two Commies by it, you have to get on top of the hill beside it and leap over that way.
The third bridge is the one with the overturned truck.
[This message has been edited by Rieekan (edited November 13, 1999).]