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Second Severn Crossing

Second Severn Crossing

General Information

Structural Type: Cable-stayed bridge
Function / usage: Motorway bridge / freeway bridge
Built: 1993 - 1996
Status: in use

Geographic Information & Related Structures

Location: Redwick, South Gloucestershire, Gloucestershire, South West England, England, United Kingdom, Europe
Caldicot, Monmouthshire, Wales, United Kingdom, Europe
Crosses
  • River Severn
Carries
  • M 4 Motorway

Technical Information

Dimensions

main span 456.000 m
total length 5 125.690 m
span lengths 32.706 m - 58.144 m - 23 x 98.118 m - 456.000 m - 23 x 98.118 m - 65.412 m
clearance 37 m
approaches bridge surface 138 753 m2
deck deck width 33.20 m
girder depth 3.15 m
main bridge bridge surface 33131 m2
overall structure bridge surface 171 875 m2
pylon pylon height 137 m
pylon height (above deck) 100.00 m

Quantities

deck of approaches prestressing steel 5 045 t
reinforcing steel 16 000 t
number of precast segments 2302
concrete for deck 105 000 m3
deck of main bridge structural steel 7 000 t
reinforcing steel 2 700 t
reinforcing steel 2 520 t
steel for cable-stays 1 733 t
concrete for deck 9 000 m3
concrete for pylons and piles 10 600 m3
foundations concrete for foundations 162 000 m3
overall structure concrete volume 420 000 m3
piers concrete for piers 20 220 m3
substructure reinforcing steel 16 900 t
concrete for piles 9 000 m3

Materials

piers reinforced concrete
pylons reinforced concrete
deck of main bridge steel
deck of approaches prestressed concrete
deck slab reinforced concrete

Relevant Web Sites

Relevant Publications

Internal Information
Structure-ID: s0000582
Created: 28/12/1999
Last Updated: 07/10/2013