Underneath the Dome

A bit ago I posted about the dome/tower and within it a stairway is being constructed. At this point it is pretty far along but not quite there. The stairway is a spiral but built on a helix, not a central pole. The helix is then tied to the walls of the tower. So I guess its more like a winder staircase but whatever... Not the best picture but you get the idea. The plywood steps are temporary. I have had the intense opportunity to make the treads for the frame. Because of the custom nature of the frame all 16 treads and platform are slightly different. Not recognizably different but definitely different. They are well on their way and will be installed sometime next week. So I'll post an update when they are in.