The Vasco da Gama Denture (Lusitanian: Ponte Vasco da Gama, pron is a cable-stayed connectedness flanked by viaducts and roads that spans the River River nighest Port, great of Portual. It is the long denture in Assemblage (including viaducts), with a totality length of 17.2 km (10.7 miles), including 0.829 km (0.5 miles) for the main circuit, 11.5 kms (7.1 miles) in viaducts, and 4.8 km (3.0 miles) in sacred gain roads. Its intention is to better the congeston on Lisboa\'s separate cards (25 de Abril Structure), and to link previously obscure motorways radiating from Port.