£3.6bn Tunnel Proposed to Tackle Windermere Sewage

A giant 12-mile tunnel is proposed to tackle sewage discharges into Windermere, England's largest lake. The project, backed by United Utilities, the Environment Agency, and local campaigners, aims to end sewage discharges into the lake and provide a solution to the pollution problem exacerbated by the climate crisis.

The proposed tunnel will be 12 miles long and is estimated to cost £3.6bn. United Utilities plans to seek permission from the government to raise customer bills to pay for the project, which could add up to £3.17 a month to water bills in 2035.

The project has the support of local campaigners, who have been advocating for a solution to the pollution problem in the lake. Windermere, located in the Lake District, has suffered from widespread raw sewage and bacterial pollution driven by discharges from United Utilities. The lake is visited by an estimated 17.7 million people every year and is at the heart of the Lake District Unesco world heritage site.

## What happens next The project will now enter the detailed design phase, which is expected to take two years. During this phase, specialised engineers will work out the technicalities of the build. If granted permission to raise bills to pay for the project, United Utilities said the project could be complete within seven years.

## Why it matters The climate crisis is expected to exacerbate the pollution problem in Windermere, with the catchment expected to experience more intense rainfall over the coming years. This will place further pressure on the wastewater infrastructure, making the proposed tunnel a crucial solution to the problem. The treated effluent would be discharged into either the River Leven or the Irish Sea at Ulverston, reducing the pollution in the lake.

The proposed tunnel is a significant investment in the region's infrastructure, and its completion could have a positive impact on the local environment and economy. With the lake being a popular tourist destination, the reduction in pollution could lead to an increase in tourism, benefiting local businesses and communities.

The use of tunnelling techniques is expected to minimise the disruption to local communities, making the project a viable solution to the pollution problem. The project's completion could also set a precedent for similar initiatives in other regions, highlighting the importance of investing in infrastructure to mitigate the effects of the climate crisis.