This has been an exciting couple of weeks. As we have seen our first frost of the season (no snow just yet!), we have been putting up the frame and the structure of the building. Click on images for full size.
The corners of the building have been placed and the first wall frame goes up.
Work on the wall frames continues. Soon after this they will be sheathed with plywood.
The four walls are up, and the roof’s lower layers have been installed. There is also a ring for the dome.
The entrance to the observatory. Note the walls inside have yet to receive their plywood, and the floor needs to have concrete poured.
A view of the dome base framework from the rooftop. Imagine a large telescope on the pier with a 16′ dome surrounding it. The roof has a slight pitch to allow water and snow to run off to the north.
Another view from the roof. Where is that dome? Here it is! It’s the bundle of materials on the pallet. Some assembly is required. The black mats are covering what will be the walkway to the building.
Construction is well on its way. The pier being poured and the concrete now setting, the various braces have been removed allowing for a clear view of the structure’s foundation.
Yesterday the concrete for the telescope’s pier was poured. What an exciting moment in this telescope’s history. The contractors used a very large Sonotube held rigidly in place with a temporary framework of wood and cables. Internally there is quite the framework of rebar to help reinforce the pier’s strength. A few conduits were also placed inside for electrical and data lines which will drive the telescope. Images (click on them to enlarge):
A view of the building’s site with the framework around the Sonotube for the pier.
A closeup of the pier near the completion of the pour.
A wide field view of the site.