|Whittaker Construction Company has built temporary work deck platforms inside the Liquid Argon Test Facility cylinder. Photo: Cindy Arnold|
Whittaker Construction Company, contracted to construct the Liquid Argon Test Facility, has built four temporary work platforms inside the LArTF cylinder, which extends into the ground. Pictured here are the ground-level platform, 42 feet above the cylinder floor, and a second platform that is 24 feet above the ground-level platform. Two more platforms, not pictured, are below the ground-level platform.
The LArTF is designed with a large removable roof that that covers an approximately 44-foot-by-23-foot access slot through which the MicroBooNE cryostat will be installed. The removable roof will be supported by two concrete beams spanning the cylinder. The contractor has elected to form and cast these two beams using the top platform as the base of the formwork. The beams will be cast this month. Later all the platforms and scaffolding seen in the picture will be removed.