3ème correction du Rhône

Canton of Vaud, Switzerland

Hydraulics: Watercourse development.

Project

Determination of the water levels of the future enlargement of the Rhone for different return periods with the HEC-RAS model. Hydraulic and static design of the new dikes.
Definition of the type of bank protection (groins, riprap).
Design of a submersible dike to drain part of the water through a defined corridor and thus reduce the risk of dike failure during extreme floods.
New road concept following the relocation of the road from the dike to the right bank.
Project to relocate existing underground pipelines.
Replacement of the existing biotope by a new biotope outside the future Rhône dike.
Renaturation of the canals of the plain.
Evaluation of the environmental impacts of the project.
Phasing of work, materials management and quotations.

Technical data

Length of intervention: 2.1 km
Widening of the Rhone to its speed width of 60 m (initial width: 30 m).
New dike on the right bank. Height of the new dike: 4 - 5 m
Raising the existing dike on the left bank by about 1 m.
Protection of the riverbanks by groins or riprap depending on the area.
Bank slope: 1: 5: 5 - 1: 2
New submersible dike on the right bank with an erodible upper layer thickness of ~ 1 m (this layer erodes as soon as the water level corresponding to Q1000 is reached).
Realization of a Ramp: Length: 100 m; gradient: 3%.

Total cost

CHF 30 Mio.

Timeline

2012–2013

Customer

Canton VS – SRTCE – Section Rhône 3

Datum: 25.01.2019

Fachgebiete

Transport & Mobilität Umwelt & Wasser Energie & Kraft Stadtentwicklung & Life Science Messung & Vermessung

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Fachgebiete

Transport & Mobilität Umwelt & Wasser Energie & Kraft Stadtentwicklung & Life Science Messung & Vermessung

Headquarters

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Piazza Stazione 15
6537 Grono
Switzerland
+41 91 820 35 00
info@pini.group

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