Bell Common (M25) Tunnels

Bell Common tunnel HVAC nozzel

The Highways Agency sanctioned a contract totalling £90.4 million for major works at Bell Common tunnels on the M25. Main contractor Costain Plc awarded the sub-contract for detail design, manufacture and installation of the Saccardo nozzles at the tunnel portals to HVAC engineering specialist Hargreaves.

Bell Common case study