[Djur]

Getting onto a bridge is relatively easy if you have a frame with an angled bottom, much like tanks have. Then your robot can just drive at the bridge and it'll be pushed down as you go over it.

@Bill_B: Say the Red alliance gets to the coopertition bridge first. They get on, then drive to the other side to allow the Blue robot on. Red then backs up to balance the bridge while Blue is relatively motionless.