Severn Bridge spanning across a wide river estuary under a partly cloudy blue sky, with muddy shoreline and sparse vegetation in the foreground.

The Second Severn Crossing

Project Summary:

Bridge project: Crossing point for the M4 motorway, over the Severn Estuary

 Start/finish dates: 1992/1996

 Bridge type: Cable-stayed

 Length: 5km (456m main span)

 Structure: 150m concrete pylons, precast cross beams, composite deck and twin box girder viaduct

 Production: Precast on shore and shipped into position

 Tidal range: 14.5m

 Main Contractor: Laing-GTM

Product and volume supplied by Hanson:

  •  All aggregate, cement (Ketton), Regen (GGBS/Llanwern) and asphalt/laying 
  •  C70 concrete mixes for piles, foundation and bridge segments (6500 ton ship at 20 knots)
  •  CEM I and between 20% and 70% Regen (GGBS) mixes (durability, control of heat of hydration and colour)
  •  Concrete volume 320,000m3
  •  Regen volume 60,000m3

The Second Severn Crossing

  • Laing-GTM

    Contractor

  • 1996

    Completion

Location

(United Kingdom)
Close-up view of the Second Severn Crossing bridge, showing its tall concrete support tower and multiple suspension cables against a bright blue sky.

Second Severn Crossing.

The Severn Bridge, a large suspension bridge with tall white towers and multiple cables, stretches across an expansive mudflat under a clear, slightly hazy sky.

Second Severn Crossing.

Severn Bridge spanning across a wide river estuary under a partly cloudy blue sky, with muddy shoreline and sparse vegetation in the foreground.

Second Severn Crossing.

Close-up view of the Second Severn Crossing bridge, showing its tall concrete support tower and multiple suspension cables against a bright blue sky.

Second Severn Crossing.

The Severn Bridge, a large suspension bridge with tall white towers and multiple cables, stretches across an expansive mudflat under a clear, slightly hazy sky.

Second Severn Crossing.

Severn Bridge spanning across a wide river estuary under a partly cloudy blue sky, with muddy shoreline and sparse vegetation in the foreground.

Second Severn Crossing.