with the bridge covered, there was only one thing missing: a hand rail. at least on one side. actually, one side would be perfectly fine.
luckily i had thought ahead and left little stubs so i would be able to use to attach the hand rail to. the main consideration was to ensure that it would be stable enough: no wobbling in any direction.
this is how i did it: a little extension, an upright and a double support. over-engineered? hell yes! but wait until you have seen all of it. i added some lateral support, too.
i think this also makes it look ok, right? just how we planned it.