HS2 Main Works S1 & S2, WP088 Sparayed Waterproofing

Scope / Description

The subcontract works are to construct the sprayed waterproofing required for the new Harvil Road over Chiltern Line Bridge (HROC) and Copthall Tunnel. The HROC structure is a new single span integral bridge with piled wingwalls and abutments supporting a composite steel bridge over the Chiltern lines. The Copthall Tunnel is a 550m long cut and cover, in-situ RC tunnel with an integral bridge deck for Harvil Road in the western portal. .