Skip to content

Road Slab Endplates - Dartford East Tunnel Refurbishment, UK

Dartford Tunnel Refurbishment

Spanning the river Thames, the Dartford River Crossing forms a vital part of Britain's busiest orbital road, the M25. The Crossing comprises two dual-lane tunnels carrying traffic to the north and a four-lane cable-stayed bridge carrying traffic to the south.

Essential remedial work on the East Tunnel required more than one kilometre of road deck to be replaced, stretching through the tunnel from Thurrock in Essex to Dartford in Kent.

The replacement road deck was installed as slabs of 4.5 metres; each slab requiring two endplates.

Ancon fabricated the 474 stainless steel endplates required. Together the endplates totalled 396 tonnes and were supplied to the Project Contractor, Kvaerner Construction, over a period of ten months.

Each endplate measured 7.34m long x 0.62m high x 25mm thick, weighed 835kgs and had 18 gussets welded to one side. The contract required that the endplates were supplied as match-drilled pairs to guarantee the precise positioning of 34 close tolerance bolts at each shear connection.

Stainless Steel Fabrications

Ancon is a specialist fabricator and has a wealth of experience in working with a range of types and grades of stainless steel.

Latest News

Proud Sponsors of 2019 Brick Awards

As a long standing sponsor of the Brick Awards, Ancon once again joins the celebrations to acknowledge excellence in the use of the UK’s favourite cladding material.

Ancon to exhibit at London Build

Ancon will be exhibiting at London Build 2019 on the 27th - 28th November at Olympia, London. Ancon will be on stand C28.