Good thought process, Ewest...thank you.
I have a couple of limitations that I must consider WRT depth placement. First, I agree with Sunil's thought that shallow water will breed too much weedage (new word, me thinks). I've got to guess that 6' depth should cure most of that issue...? Second, as much as I am doing my best to plan for good structure, the pond is more than a fish haven. It's true use and plan is a Bski haven, with or without a pole. I need to be able to motor about most of the water in a small pontoon and not have to remember where special structure is located (remember, you guys taught me to to be true to myself and design based on my long term goals). Maybe just as important, the same holds true for a guest that is totally unfamiliar with my pond and submerged junk. To this end, I made a decision when this whole thing started to try to locate shallow structure (top is within 2 - 3 ft of normal pool) in specific zones. That is why all those tire pyramids and PVC trees are lining the outer edge of the shallow wetland zone. It's an area dedicated to fish stuff. The Rockytopper lunker stopper is set near the dock, but the tops are 5 - 6' below normal pool; non-issue. The balance of the pond is pretty much reserved to be devoid of submerged hazards (2' - 3' below pool).
Now, all this being said, I am willing to add the cribs to a new zone, but I want it to be near the shore (out of the way) OR 5'-6' below the normal pool.
Put them perpendicular to the shoreline across the ditch (bottom of the trench) just out from where you have them marked and about 20 ft apart. 3 ft of water under them and leave the holes as is.
(hmmmmm, very good Danger) you've been doing my homework. There are 2 ditches; one larger/longer, that I believe you elude to...and...Norm's ditch, shallower/shorter and further away. I believe you mean the former, this ditch, pic taken from within the basin and looking straight on to the building pad.
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...the same ditch, from the opposite end, viewed from atop the pad. The black dirt hump center of frame is the piled up spoil from digging the ditch that trails away behind it. The 2 monster holes are on each side of this dirt hump.

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OK, assuming you mean this ditch, here's the spec's. The bottom of the ditch is about 11' below normal pool. Either side of the ditch is 8'. The ditch is the width of the dozer blade: 11' + slop. Do you propose that I set the cribs within the ditch, elevated so the bottom of the crib is 3' above the bottom of the ditch? This would put the top of the cribs about 6' below normal pool. I could work with this depth, no problem. The
problem might be getting them there. We've had more rain since this last pic. I've got the waders for sloppy areas, but lugging and placing eight 60# concrete feet will likely suck large. Small price to pay, eh?