Crews at the Woodwinds HealthEast Healthcare Campus in Woodbury performed a major operation on August 5 in the course of construction of a new linear accelerator vault addition. KA project superintendent Chuck Brady gave us an inside look.
Q. What was the purpose of the big concrete pour?
A: This is for a Linear Accelerator used for cancer treatment. It is referred to as a vault.
Q. About how much concrete was poured?
A. About 340 cubic yards.
Q. Why was it done as a continuous pour?
A. The design does not allow any cold joints, for structural purposes and also to eliminate possible radiation leakage points.
Q. What are the important considerations in doing this part of the project correctly?
A. Following the layout precisely. The dimensions and elevations are all based on the physicist report.
Q. How big/heavy is the equipment that will be housed in the finished structure?
A. The footprint of the equipment and table is approximately 15’ by 6’. It comes in pieces to fit through a 4’ wide door and when assembled it weighs several thousand pounds.
Q. Any other unusual or tricky aspects of this project you want to share?
A. Making sure the radiation shielding is intact.
Q. What happens next in the project?
A. We have more foundation footings and walls to pour that go between the vault and the existing building. Also, we have more site work resuming next week. In the near future we will start demo of the area inside the existing building and build back and be finished with the addition.
Q. When will the structure be ready for the linear accelerator equipment?
A. We need to have the vault and control room ready for delivery of equipment December 13.
Q. When will the project be completed?
A. We are scheduled to be complete with the addition and the first phase of the Cancer Center the first week of March.