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In December 2011, Thiess Tunneling was awarded the construction contract to build a 3.2Km cable tunnel under the city of Sydney for the largest electricity distributor in the country - Ausgrid.

This 132KV City East Cable Tunnel (CECT) is segmentally-lined and 3.5m in diameter. It will connect the existing City North substation in Sussex Street to the new substation in Riley Street, Surry Hills. The scope of works under this contract is the supply, installation & commissioning of all tunnel services for the City East Cable Tunnel (CECT).

These services include:

  • Electrical- Lighting
  • Power & Switchboards
  • Hydraulics
  • Mechanical
  • Tunnel Management Control System (TMCS)
  • Fire Detection
  • Communications
  • Radio Communications (Installation Only)



Client Thiess Pty Ltd
Contract Value $8 Million
Services Electrical, Communications
Branch Infrastructure

For more information about this project or to submit an inquiry, click here.