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Second Severn Crossing

General Information

Beginning of works: 26 April 1992
Completion: 5 June 1996
Status: in use

Project Type

Structure: Cable-stayed bridge
Function / usage: Motorway bridge / freeway bridge
Material: Steel bridge

Location

Location: , , , , ,
, , ,
Crosses:
  • River Severn
Carries:
  • M 4 Motorway
Coordinates: 51° 34' 27.23" N    2° 42' 0.74" W
Coordinates: 51° 34' 10.20" N    2° 39' 50.33" W
Coordinates: 51° 34' 55.73" N    2° 44' 5.55" W
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Technical Information

Dimensions

main span 456.000 m
total length 5 125.690 m
span lengths 32.706 m - 58.144 m - 23 × 98.118 m - 456.000 m - 23 × 98.118 m - 65.412 m
clearance 37 m
approach viaducts 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 approach viaducts 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 approach viaducts prestressed concrete
deck slab reinforced concrete

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  • About this
    data sheet
  • Structure-ID
    20000582
  • Date created
    28/12/1999
  • Last Update
    25/01/2018