I already gave in to the fact (way back on the 1st page) that a more experienced river crosser might have made it across. So, since this is tech, what steps do you take on deciding whether or not a river crossing is passable?
I first read the river and understand what it is doing. That is, I get a feel for the topography and the terrain. the type of material that makes up the ground around and under the water. the shape and quality of the banks, the speed and depth of the water.... what sort of debris is or is not there....stuff like this.
This gives me a lot to go on to determine the likely shape of the river bottom and make up of the materials that form it.
This all affects entry and egress and as you found out, a soft spot in the middle can be a problem too.
I look at the speed of the water and slope of the terrain. This goes to the shape and make of of the bottom too. And of course it gives me info to anticipate if I am gonna be moved downstream as I cross... if the tail is gonna sweep around as I climb the bank on the other side... if it is simply too fast to attempt...
These factors along with the capabilities of the rig I am using help to plan the route across... sometimes it is simply a matter of pointing at the other side and driving across... other tomes it is a matter of threading my way from river bar to river bar, sometimes turning downstream or even upstream. There are a LOT of different types of crossings and a LOT of ways to approach them effectively.
I look and see what is likely to happen f my plan of driving straight across does not work out. is there deeper water downstream? are there rocks or eddies or pools. What sort of egress points are on the other side..,, primary and secondary?
I have an awareness of m commitment point. at what point can I back out and at what point am I gonna have to keep gong forward.
I can't tell you everything that goes into it. I have probably left out a couple of basic things because they are so basic to me that I do not think of them consciously most of the time. It is based on years of boating in rivers and years of back country travel involving significant river crossings on a constant basis.
In this situation... with terrain that indicates a likelihood of a soft bottom to the crossing... in an FJ80 with ATs or at most MTs and no lockers... in town... on my way to work... alone with no other rigs with me, no winch and daunted by the depth of the water... I would not have crossed.
Mark...