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Viaduc du Lignon

General Information

Beginning of works: 1992
Completion: 1993
Status: in use

Project Type

Structure: Twin girder bridge
Function / usage: Road bridge
Construction method: Incremental launching
Material: Steel-reinforced concrete composite bridge

Location

Location: , , ,
, , ,
Crosses:
  • Lignon River
Carries:
  • Route Nationale RN 88
Part of:
Coordinates: 45° 15' 26.95" N    4° 8' 49.26" E

Technical Information

Dimensions

main span 100 m
total length 640 m
span lengths 70 m - 5 x 100 m - 70 m
pier height max. 105.15 m
on-center distance between girders 5.60 m
girder depth 3.50 m
distance between cross-beams 8.125 - 8.333 m
deck deck width 10.75 m
deck slab thickness 22 - 35 cm
launching nose length of launching nose 43.6 m
pier P2 height 73 m
pier P3 height 105.15 m
pier P4 height 82 m
piers P1, P5, P6 height 33 - 42 m

Quantities

abutments concrete volume 400 m³
deck structural steel 1 900 t
concrete volume 2 100 m³
reinforcing steel 440 t (210 kg/m³)
shear studs 15 t
foundations concrete for foundations 2 500 m³
piers concrete for piers 6 300 m³
reinforcing steel ratio 120 kg/m³
shafts reinforcing steel ratio 135 kg/m³

Cost

cost of construction French Franc 70 000 000

Materials

piers reinforced concrete
deck slab reinforced concrete
abutments reinforced concrete
girders steel

Participants

Owner
Client
Design
Architecture
Construction engineers
Checking engineering
Construction
Civil works
Steel construction

Relevant Web Sites

Relevant Publications

  • About this
    data sheet
  • Structure-ID
    20002941
  • Date created
    09/02/2002
  • Last Update
    05/02/2016