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Project Zhongshan Port Bridge Expansion is an important part of Zhongshan Main Road Network Plan (2004-2030) and Provincial Highway S111 Panyu-Zhongshan Section. At present the project is under busy construction. According to the initial planning, the newly-built main bridge of Project Zhongshan Port Bridge Expansion is to open to traffic and on the meantime the right side of the old one is to be closed for construction for about half a year. Both the new and old will open at the end of this year. Then the new bridge and the old bridge will provide six lanes in two directions.