Work to install a massive underground stormwater storage tank at Lancaster bus station is nearing completion.
United Utilities said the work should be done by the end of May.
The work is part of an £18m overhaul of the sewer network within the city, which will help the system cope better during heavy periods of rainfall, protecting the River Lune from raw sewage spills.
Work at Parliament Street Retail Park is now complete, however engineers still have a further three phases to work on, which involves increasing the size of the existing sewer pipes in Damside Street, North Road and the A6 at Rosemary Lane.
Dawn Harrington, United Utilities project manager said: “We can’t thank local businesses, commuters and visitors to Lancaster enough for their understanding and patience so far during our work.
“Carrying out work of this size and scale in such busy locations is a massive engineering challenge.
“The next phase of our work will start at the end of May. This will require temporary traffic management and some road closures.”
The company is urging people to find out more about what will be happening next at a public exhibition to be held on, Tuesday May 6 between 4pm and 7pm at the YMCA Building in Fleet Square, Lancaster.
Dawn added: “If you can’t make the exhibition don’t worry.
“Visit our website at unitedutilities.com/lancaster. All the details about what we’re doing next will be explained here.”
Information can also be found at the website on United Utilities community fund which is running throughout Lancaster sewer improvement project.
This offers community groups the chance to apply for grants of up to £500 per application.