Tunnel for John Holland Merri Creek Sewer Main Rehabilitation
Current Sewer is on the verge of collapse
RBM Plumbing & Drainage have been engaged by JBH & KBR Joint Venture to carry out early works program to repair Merri Creek Sewer Main.
First part of works require the lowering of 525dia concrete relieving main between the Merri Creek Main and the Merri Creek Relieving Main by approximately 1 meter. This requires excavation of Tunnel by hand from existing 1500dia reinforced Manhole Wall approximately 1.5meters thick, removal of existing concrete pipe. Including the installation of Tunnel Support System 16 meters in length.