TopH20,

i mangage a few ponds in your area. Cardinal Lakes and Berkeley Lake to drop names. I can show you a few pieces of structure that I have worked on if you like. also, PVC works well, but is expensive. I have built some plastic structure out of that black corrigated pipe that goes under the drain pipe of your house. its plastic (wont rot), bulky, light and cheap. I thougth I dropped some ideas about vertical structure in your other post. let me know.

later

Shan O'Gorman
Pro Ponds