Zachary,
I like to use black 4" corrugated flexible drain pipe to make structure for deeper water. I mark my structure with a 1 1/4 " pvc pipe driven into pond bottom. I use Christmas trees for structure at pond edge and also stake to pond bottom. I keep several rakes around pond to pull Christmas trees out of water when I hang up a lure. There are a number of commercially made pond structures made of composite materials that are relatively snag resistant that you should consider. You can minimize hang ups using hard round materials for structure.

Al Allison