United Utilities has started an £80M upgrade of the city’s sewage system, including decommissioning part of the sewage works at Royton and upgrading the Oldham treatment works at Chadderton.
Engineers are also building a new sewer pipeline between the two treatment works.
The team is planning to use tunnelling techniques to minimise disruption. It is also holding a series of public events to inform locals about the project, which will be completed at the end of 2017.
Project co-ordinator Chris Tighe said: “We have held a number of exhibitions already to inform the community about our work. We now have more detail for the pipeline route which we want to share and our team will be on hand to answer any questions about this.”