Once it was clear, we drove on to the aqueduct. The channel is barely wider than the boat, so there is very little in the way of steering to do. The flow against us reduced our speed to around 1 mph, so we had time to enjoy the experience. The first time I crossed I was amazed to discover that there was a guard rail on the towpath side, but not on the other. When driving, the side of the trough is slightly below your feet.