I'm not sure if I should be posting in GD or the gallery, but since I'm not
showcasing the build per se, I guess this is the better board? Sorry if I am mistaken.
Anyway, I haven't played Blockland in ages, and I decided to build on single player for a little. Over the past few days, I made a cute little fortress(? it looks more like a manor or something but still) that I decided to use in a CTF or a TDM with capture points (what do you call that?).

Mind you, I'm not asking for a critique on the build itself. I know there are some flaws with it, but that's not the point yet.
I'd almost be done with this part of the build, but the only thing that's been stopping me from finishing is that little brown board in the water. I've been trying to work it into a drawbridge, but I'm just stumped. I've tried looking at reference pictures and looking at other people's builds, but I've just had no luck!
How would you guys go about this?