TBM Harriet will dig a 150m-long tunnel for the new pipework system, which will replace the old outfall.
Local school children from the nearby St Saviour C of E Primary School visited the site to meet Harriet. Some of the pupils from have their designs displayed on hoarding around the site after a competition to design a poster of what not to flush down the loo.
The £110m project will increase the treatment works’ capacity by 20% and reduce the number of storm overflows during heavy rain.
There will be major enhancements to the treatment processes at the works to use more innovative technology to treat the wastewater to a higher standard. The storm overflow outfall pipe will also be relocated as part of the project.
“The works are continuing at pace across the treatment works at the moment and this project will deliver real benefits to the water quality in the River Irwell,” said United Utilities third-part co-ordinator Catherine Coupe.
The full improvements will be operational by April next year.
