Lastly, some bridges are composed of cantilevers and suspended girders.
The cantilevers are fixed to the shore side of the towers.
In length and attached to the cantilevers by links.
The cantilevers can stiffened suspension bridge, but atter the fall of the Tay bridge in 1879 this was abandoned.
The length of the cantilever bridge is 5330 ft., made up thus: central tower on Inchgarvie 260 ft.; Fife and Queensferry piers each 145 ft.; two central girders between cantilevers each 350 ft.; and six cantilevers each 680 ft.