Island 4
Bridge 1- beam bridge with truss
Bridge 2- beam bridge with trusses
Bridge 3- cable stayed bridge
Bridge 4- beam bridge with a central support
Bridge 5- arch bridge
Bridge 6- cable stayed bridge
Bridge 7- beam bridge with supports
Bridge 8- truss bridge
Bridge 2- beam bridge with trusses
Bridge 3- cable stayed bridge
Bridge 4- beam bridge with a central support
Bridge 5- arch bridge
Bridge 6- cable stayed bridge
Bridge 7- beam bridge with supports
Bridge 8- truss bridge