The tunnel will link the Frome Valley Relief Sewer to the Bristol Trunk Sewer, directing sewage around north Bristol 
A spokesperson for Aecom said, “Aecom is working with J Murphy & Sons, who were appointed Principal Contractor for the GBP 45M project earlier this year, on the scheme’s outline design. As lead designer, AECOM will deliver the detailed designs for the project, with construction due to start in late 2019.”

Steve Woodrow, Aecom’s Head of Tunnelling – Europe, said: “Tunnelling under the M5 and operational rail services, and connecting with the existing sewage system, this complex tunnel is a vital part of Wessex Water’s strategy to future-proof the sewerage network for communities in Bristol.”