Tyne Tunnel Routine Inspections
Rendel’s long involvement on the Tyne Tunnels has been extended by Tyne Tunnel 2 Ltd (TT2). Rendel has been given a 12-month extension to its seven-year contract to undertake the routine inspections of the New Tyne Crossing and the original tunnels, as well as the associated highway structures.
Rendel was initially appointed in 2012 by the consortium of Bouygues Travaux Publics, HSBC Infrastructure Fund Management Ltd and Bank of Scotland Corporate which form TT2. Rendel’s role has been to undertake the routine inspections of the structure and the M&E works for the structures, specifically:
- Structural inspections of the road tunnels, bridges, retaining structures and gantries
- Emergency response to provide timely expert structural advice and guidance regarding the condition of the structures following an incident
- Level monitoring of the lightweight fill under the road at the South Junction, and structures within the original south portal replacement slab
Rendel’s involvement in the Tyne Tunnels started in 2006 when it was appointed by Bouygues TP as the lead design consultant on the New Tyne Tunnel. The £260 million New Tyne Tunnel, which opened in 2011, was one of the largest civil engineering projects in the UK and involved the construction of a second two-lane road tunnel under the River Tyne to ease the traffic congestion experienced by the existing tunnel which was opened in 1967.
The project comprised the design and construction of a 1.5km immersed tube road tunnel downstream of the existing bored tunnel across the Tyne between Howden to the north and Jarrow to the south, the south Jarrow junction and the refurbishment of the existing tunnel.
Rendel was responsible for:
- Tender design to support the client's tender covering a variety of disciplines for the concession contract
- Detailed design of the new immersed tube tunnel and cut and cover approaches
- Design coordination of the highway works and bridge works and refurbishment of the exiting tunnel
- Managing regulatory approvals and consents
- Construction supervision and certification
The New Tyne Crossing was the winner of the 2012 British Construction Industry Awards.