Physical description

Three black and white images taken from: "Melbourne water supply - sewerage schemes" Special edition of the "Building, engineering and mining journal" The operations of the Melbourne and Metropolitan Board of Works.

(.03) Plate XXXI. Under Port Melbourne Railway, Hobsons Bay Main Sewer, Section No 3. This view was taken in compressed air, and shows shield doors in background with men placing extra htdraulic power in position. This view also shows the method of constructing with concrete blocks and iron centreing on which to build the upper portion of the sewer.