While the implosion was considered successful with the roof and a majority of the structure felled, the eastern wall and the northwest gate of the Dome were left standing after the implosion. Although the Dome's proximity to adjacent structures was a major concern, with Mercedes-Benz Stadium only away from the Dome, demolition officials stated that bringing the roof down was the biggest challenge due to its unique design. The Georgia World Congress Center and Mercedes-Benz Stadium were undamaged during the first implosion, although the new stadium did receive a heavy dusting. Initially, demolition officials stated that the two remaining sections would be brought down manually with hydraulic excavators; however, after inspections determined that the explosive charges did not detonate, a supplementary implosion took place on the morning of December 20 at 1:00 am EST. A window at one of the GWCC buildings was shattered during the second implosion but was quickly replaced.