Yes, I can install (and will) at normal water level. I plan to install the posts by pounding them in, the cedars by dropping them in. The posts will likely stick out of the water with the cedars completely submerged.

I have fished the culverts (thanks for asking). No fish from them yet. I'll keep trying though!!!

19 acre watershed pond
LMB, BC/WC, Bluegill, Crawfish, GShiners