Timelapse shows construction of ammonium nitrate storage dome

Dome Airform

The inflated Airform for the dome, showing the airlock system at the entrance. (Mike South)

Airform back side

The inflated Airform from the back side. (Mike South)

Airform on ground

The Airform set on the foundation before being blown up. (Mike South)

Steel rebar at top of dome

Detail of the top of the dome, where the steel reinforcing rebar can be seen. (Javier Figueroa)

Steel rebar inside dome

The interior of the dome, where the steel reinforcing rebar is added. (Javier Figueroa)

Monolithic Dome concrete foundation

The concrete foundation for the Monolithic Dome, the first step in the dome-building process. (Mike South)

Monolithic Dome construction site

An aerial view of the construction site. (Mike South)