Luckily for me, no it was not. We got 8 cars accross there in half a day.
In total I beleive we used in excess of 12 snatch straps and two winches, we had about 16 people in the river the whole time (including myself) assisting with hooking cars up when/if they lost forward momentum.
As I said it was an experience I will never forget, my father spent in excess of two hours straight in the water at the muddy exit on the other side... yeah thick muddy water with no visibilty...that's balls!!!
EDIT: I may even be able to obtain some scans of the still shots that my parents have.

