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The Project 

The T3 – Grande Stade project was aimed at extending the T3 tramway to the sports stadium in Décines-Charpieux in the Lyon region. The project included disconnecting and reconnecting the existing line, creating a tramway platform with facilities for bike/foot traffic, developing the Grand Stade tramway station and creating a road crossing.
This crossing involved:

  • dropping the road, creating a 146 m covered section and two ramps (90 m and 60 m) for the tramway and a pedestrian walkway,
  • creating a concealed floor lifting unit,
  • building concealed technical facilities (a tramway substation),
  • creating a two-storey control room and a sunken courtyard.

Challenges

Project owner
SYTRAL

Period
2011 – 2014

Key figures
Cut and cover section in an urban environment and underground technical facilities
Length of the double portico: 146 m long x 16 m wide – Span: 16 m
Length of the retaining walls: 300 m

Challenge
The urban location (proximity of shops, dealer neyworks, etc.) and other major construction works (Grand Stade, north entrance to the stadium, etc.) required effective management of the interfaces, from the very first design phases.

The Assignment

setec als’s assignment involved:

  • preliminary and detailed design,
  • assistance with awarding works contracts and developing call for tender
  • documents,
  • contract surveillance,
  • scheduling, construction management and coordination (SCMC) for networks,
  • construction design verification,
  • works acceptance.