There was an existing railing in the very middle.
[photos by Sue Kirsch]
The old railing has been removed and the post connections ground down.
Here is one of the railing corners.
Ron mixed up soupy fast-drying concrete to pour into the post holes.
Here we can see the railing in place during the FORM Arcosanti 2016 event.
The crew and workshop participants painted the railing to protect against rust.