An aging storage tank built in 1977 had undergone various service changes in its lifetime resulting in severe upper shell and roof corrosion.  The balance of the tank remained in very good condition and the client was exploring options for re-purposing the equipment.  With consideration the original tank volume was no longer required it was determined the best option was to remove the upper three shell courses no longer required and install a new roof.  Following the one-piece removal of the upper shell, a new self-supported, coned roof was installed and the tank was effectively repurposed.