900 Ton Containment Vessel Bottom Head Installed At Vogtle 3

Yesterday, Georgia Power announced that they successfully lifted the first part of the Vogtle Unit 3 containment vessel into place. From World Nuclear News: "The component — measuring almost 40 meters wide, 12 meters tall and weighing over 900 tons — was assembled on-site from pre-fabricated steel plates. The cradle for the containment vessel was put in place on the unit's nuclear island in April. The completed bottom head was raised by a heavy lift derrick and placed on the cradle on 1 June, Georgia Power announced." Georgia Power has a pretty cool gallery of high resolution construction photos (the bottom head is the background on my XBMC machine). Below the fold there is a video of the crane moving the bottom head into place.

Comments

Bottom head?

[MetalliQaZ]

Am I supposed to know what they are talking about here? Where is this going? Why? What is a bottom head used for? Vogtle Unit 3?? I feel like Lord Helmet in Spaceballs shouting "WHO??" in confusion just before his mask falls.