nzaugg
Keeper of San Juan Secrets
If you look at the Navionics contours of the lake bottom in the ferry cove, you can see a consistent drop in elevation to about 100 feet depth. Since the contours were developed at 3606, there is a bench at around 3500 feet. This is consistent with pictures I have seen from the area prior to construction of Glen Canyon Dam. After the flat spot, the terrain again drops consistently all the way to the river bed. It's probably why the area was used for the original crossing.How did you come up with 40 feet?
I know the planning document was originally from 2016, but it means that somewhere in the background planning has occurred for development of the ferry to lower depths. It is also likely that planning has been ongoing for lower boat launches, though plans have not been shared with the public. I am guessing that there is no funding for the ferry project, which is why the last update was 5 years ago.