river help needed

[LynnB]

Keep in mind that as far as the modeled “water” goes, we really only model the surface of it (maybe to a depth of 1/8” or so)
So as long as the bed of your stream (or pond) is lower than your track, structures, or any other scenery, it should look fine…
You mentioned cutting through the plywood…You could do that & just glue something to the bottom of the wood to fill the hole…this would give you at least the thickness of the plywood to use as a river bank…???

I'm thinking maybe if I cut through the plywood at the lower part of the river may be better then the entire river this way I'd get a better illusion for the little waterfallinto the deeper river.