The construction of Jackson Plaza was progressing in March 2011. White sealant was being used to fill cracks in the concrete slab and prevent future cracks in the new terrazzo floor being installed. The design team was researching safe methods to clean the original marble walls. A new drop ceiling was being installed in the baggage area under the plaza to hide mechanical and electrical systems. Work was also being done on sidewalks, light posts, walkways, and restoring historic elements like the grand staircase and windows.