VPRS 18383 Index to Surveys, Plans and Contractors Used in the Construction of Melbourne Underground Rail Loop

The records in this series contain index cards to surveys, plans and contractors used in the construction of the Melbourne underground railway loop.The rail Loop was to be made up of four new rail tracks under Spring and La Trobe Streets (in four separate tunnels, the Burnley, the Caufield/Sandringham, the North Melbourne and Clifton Hill/city circle) forming a new link (a loop) in the existing railway system. Two additional tracks were to be constructed between Flinders Street and Spencer Street Stations as part of the loop with three new underground stations (Parliament, Museum and Flagstaff) to provide the northern and eastern regions of the City with rail connections to the entire suburban network. The Loop runs partly underground (through four tunnels), partly on the surface and partly elevated.