Project Detail Total Drain Cleaning was tasked to clear out 150-year-old brick stormwater pipes in the Sydney CBD. Project Challenges A Pipeline Condition Report was carried out and it was found that these lines were filled with roots, sediment, concrete and some sewer infiltration. In total, there was approximately 700m of stormwater line to clear which was located in the heart of Sydney CBD. The pipes were made from brick and were over 150 years old so care had to be taken to prevent any damage to the pipes. Solution As the works were located on a busy Sydney CBD road, night works, traffic control and lane closures were required to safely carry out the works. A mixture of using the Combination Jet/Vac unit and hand cleaning techniques were utilised to minimise any risk of damaging the pipes. The pipes were 1.2m-2m in diameter which enabled us to carry out confined space works. Confined Space and Breathing Apparatus equipment was utilised. All TDC operators were confined space trained and certified. Ventilation Plans, Flow Plans, Traverse Plans, Rescue Plans and Fatigue Management Plans were written up to manage all safety risks associated with these works. Project Outcome Works were completed in approximately 7 nights. Large, convoluted roots were effectively removed from the pipe. Concrete was removed from the pipe. Point of Sewer Infiltration was identified and immediately reported to client for investigation and rectification. Due to high level of vigilance in safety protocols and procedures, there was nil impact on productivity or health and wellbeing of our operators.