Photograph of a man working on a piece of the internal viaduct girders.

Photograph of Inchgarvie main pier, building of central tower and bottom members of cantilevers. Workers' buildings in foreground.

Photograph of Queensferry main pier, view from east of central tower. The south approach end pier can just be seen, with temporary jetty. A boat sails behind the north (right) cantilever.

Photograph of Fife main pier, view from west of central tower at full height, double cantilevers in construction.

Photograph of the circular raft used to measure the contours of the rock around the two south piers at Inchgarvie. Surveying equipment on the raft includes mooring blocks, winches and tide gauges.

Photograph of a cage with crane for building base member. There is a worker at crane controls, and others standing within the cage.

Photograph of the pumping out Queensferry north west caisson. A view of the inside of the caisson with men and boys watching.

View of pumping out Queensferry North West Caisson with men posed, one in the centre, others around the caisson.

View over field of the three piers with Inchgarvie pier and island and Fife pier obscured by sea fog.