Once in the ground we attached 2x4 to old the form and then strapped it with 4 inch width by 1/4 inch thick steel straps at the bottom. The covered telescope in the background was used to line up the form with polaris.  

The deck as we laid down 2x6 planking.

The base of the observatory is being constructed. The yellow objects are the base rings the hold the dome rotation rollers.