Sentosa Gateway Tunnel, Singapore13 PhotosArea: 6,800m² | Year of Completion: 2017Central Underpass, Hong Kong5 PhotosArea: 1,700m² | Year of Completion: 2011Wakefield Tunnel, UK5 PhotosArea: 100m² | Year of Completion: 2010Eagle's Nest Tunnel, Hong Kong3 PhotosArea: 36,200m² | Year of Completion: 2006Sha Tin Heights Tunnel, Hong Kong3 PhotosArea: 22,910m² | Year of Completion: 2005