Tranchée couverte de Vésenaz

Traversée de Vésenaz

Perreten & Milleret is partner of the ONLINE joint venture

Type of project

Cut-and-cover tunnel to create a 520-m underground section of the Thonon highway

Technical specifications

• Tunnel length: 510 m, with two access ramps of 91 and 102 m
• Phased construction of the two lanes, with continued traffic flow
• Containment walls implemented as piled walls
• 900 m road developments at surface level
• Two lanes of 3.50 m each
• Bottom and cover slabs in reinforced concrete

Challenges

• Site in urban context
• Phased implementation
• Narrow right-of-way
• Continued traffic flow
• Permanent access to adjacent properties
• Permanent availability of utility ducts
• Essential sewers