New Tyne Tunnel
The New Tyne Tunnel was a privately-financed scheme to design and build a 360m-long immersed tube tunnel under the River Tyne in Newcastle between East Howdon on the north bank and Jarrow on the south bank. The project, delivered on a 30-year public, private partnership (PPP) comprises a 1.5km immersed tunnel with cut-and-cover tunnel approaches (total length 1,125m) and a major refurbishment of the 1967-built Tyne Tunnel. The tunnel opened in February 2011.
The tunnel provides two traffic lanes in each direction and a three-fold increase in capacity rating. The total length of the New Tyne Crossing project, including the approach roads, is approximately 2.6km long, with a main carriageway typically 7.3m wide.
Rendel was the lead design consultant (supported by sub-consultants) for the design of the civil and M&E works for the new tunnel and the refurbishment of the existing tunnel and approach roads, associated structures and buildings. The project included several kilometres of cut-and-cover approaches using D-walls and secant piles. The D-wall elements are some of the deepest ever carried out in the UK.
Rendel was also the lead design consultant for the preparation of the DBFO (Design, Build, Finance, Operate) tender design to Bouygues-led consortium. In addition, Rendel was appointed on the design and construction of a second vehicle tunnel under the River Tyne.
Rendel’s responsibilities included:
- Design coordination of the new tunnel, highway works and bridge works
- Construction supervision and certification
- Refurbishment of the existing tunnel
- Managing regulatory approvals and consents
The project won the 2012 British Construction Industry Award for Major Civil Engineering Project of the Year over £50m.