Scottish Water has announced the successful completion of a £23 million 'super sewer' project in the heart of Tay Street in Perth.

The significant investment has seen 520 metres of existing sewer beneath Tay Street and Shore Road replaced with a new 2.2-metre diameter pipe. This substantial upgrade is designed to help protect areas of Perth from sewer flooding and accommodate future growth in the Fair City for decades to come.

This major undertaking forms part of Scottish Water's wider £100 million investment programme in Perth. The project was handed over to Perth & Kinross Council at the start of June 2025 for final resurfacing and reinstatement works to be carried out.

David Lavery, Senior Project Manager at Scottish Water, commented: "We're very pleased to confirm that all works are now complete and Tay Street has fully reopened. This has been a complex project in a very busy area of the city, and we're incredibly grateful to local businesses, residents, road users and visitors for their patience over the last two years. The new sewer beneath Tay Street and Shore Road is designed to serve Perth for decades to come, with this new pipe being four times the size of what was originally there."


To facilitate the safe and effective installation of the new sewer, traffic restrictions, including road closures and a temporary over-pumping system, were in place since May 2023 to maintain the city's wastewater flow.

Councillor Chris Ahern welcomed the reopening, stating: "This has been a major piece of work that was essential to modernise Perth's ageing sewer system and futureproof it for the years ahead. While the disruption was significant – particularly for residents and businesses – I'd like to thank Scottish Water for their engagement with the local community and elected members throughout. With Tay Street and Shore Road now fully reopened, Perth can get back to normal – and we'll soon see the benefits of this vital infrastructure upgrade."

Councillor Eric Drysdale, Perth and Kinross Council's Convener of Economy and Infrastructure, added: "This has been a major project to improve the waste water network in Perth and provide reassurance to residents and businesses in the city centre. I am very pleased to see Tay Street and its neighbouring roads now fully reinstated and open as normal."

Scottish Water continues to deliver essential upgrades to water and wastewater infrastructure across Perth as part of its ongoing city-wide improvement programme.