time-lapse to 8/16/14

Same period, two different angles.

Forming vault walls

Forms are progressing for the pouring of the vault walls. This vault will be functionally just for mechanical features like furnaces and pumps, but there will be some space for emergency refuge and it will be an extraordinarily strong structure.

And if you drive by you'll see the large quantity of ductwork on site. These are big! The volume of the building requires a lot of air flow; moreover, the noise of the heating and A/C inside the building is decreased by having larger ducts because the same volume of air can be moved at a lesser speed. 

Vault slab!