HS2 railway to Birmingham passes over canal to Birmingham

Construction of the HS2 viaduct in west London has just passed over the Grand Union Canal, its 200-year-old predecessor that also links London to Birmingham.

HS2’s Colne Valley railway viaduct reaches construction halfway point

Construction of HS2's long Colne Valley railway viaduct in west London has reached the halfway mark, with the railway deck now assembled on 28 of the supporting piers.

HS2 completes complex Colne Valley viaduct manoeuvre

Over the past few weeks, HS2 has been moving a 40-metre section of the long Colne Valley viaduct into place over a main road in west London.

V-shaped piers unveiled for HS2’s Colne Valley railway viaduct

New photos of the V-shaped piers that will carry the HS2 railway over the Colne Valley in west London have been released, showing how the railway's longest viaduct will span the lakes.

Behind the scenes at HS2’s gigantic Colne Valley viaduct factory

Just inside the M25 motorway in northwest London is a huge worksite for the HS2 railway, building two tunnels heading north, but also the viaduct bridge that will span the Colne Valley as the railway heads towards London.

Construction of HS2’s Colne Valley viaduct segments has started

Work on the UK’s longest railway bridge ramped up earlier this week as HS2 began production of the first of 1,000 huge concrete segments that will eventually be used to form the deck of the Colne Valley railway viaduct.

First pier cast for HS2’s Colne Valley viaduct

Construction of what will be the UK's longest railway bridge has taken a step forward as the casting of the first of 56 concrete piers has been completed.