Nuclear Decommissioning: Lacrosse BWR




Location: Lacrosse, WI

Customer: Bigge Power Constructors

The Lacrosse BWR Project consisted of providing access to remove the reactor vessel. 

First, an opening was cut in the side of the reactor containment measuring approximately 14 feet wide and 60 feet high. The containment structure consisted of 1 inch thick plate and 9 inches of concrete.

The second phase consisted of cutting one side of the bio shield wall out. The wall varied from 6 to 9 feet thick lined with 3/8 inch carbon steel. Twenty-three sections weighing up to 30,000 pounds were cut and removed.

The final phase consisted of cutting 10 nozzles, 29 control rod drive tubes and 12 other appurtenances within 4 inches of the vessel wall so the vessel would fit into its canister.


Download the Case Study in PDF format here.

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