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Environmental Engineering Services for Twann Tunnel Northern Bypass Project

Die vorliegende Ausschreibung betrifft Umweltingenieurleistungen (UVP) für die Phase Detailprojekt (DP) und Umweltbaubegleitung (UBB) für die Phasen Ausschreibung und Realisierung der Nordumfahrung des Dorfes Twann (Douanne). Diese Umfahrung erfolgt in Form eines Tunnels (Twanntunnel), der an den bestehenden Ligerztunn…

Source ID: CH-SIMAP-31711-01

Scope overview

Die vorliegende Ausschreibung betrifft Umweltingenieurleistungen (UVP) für die Phase Detailprojekt (DP) und Umweltbaubegleitung (UBB) für die Phasen Ausschreibung und Realisierung der Nordumfahrung des Dorfes Twann (Douanne). Diese Umfahrung erfolgt in Form eines Tunnels (Twanntunnel), der an den bestehenden Ligerztunnel anschließt und diesen verlängert.

Das Projekt besteht hauptsächlich aus einem neuen 1'925 m langen Untertagtunnel, der beim Ostportal an die bestehende N05 zwischen Twann und Wingreis angeschlossen wird, wo eine neuer Halbanschluss vorgesehen ist. Das gesamte Bauwerk wird unter Verkehr gebaut, wobei die Realisierung an beiden Enden in einer komplexen Etappierung erfolgt.

Der Auftrag umfasst die UVP-Leistungen für die SIA-Phase 33 und die UBB-Leistungen für die SIA-Phasen 41, 51, 52 und 53. Diese Leistungen unterliegen der Norm SIA 103 «Reglement über die Leistungen und Honorare der Bauingenieure» und dem Dokument «Beschreibung der Leistungen des Verantwortlichen für die Umweltbaubegleitung in den Projektphasen «Ausschreibung» und «Realisierung».

Statusopen
CategoryNon-Consulting Services
CountrySwitzerland
Publish dateMar 6, 2026
Submission deadlineApr 24, 2026
Estimated value—
Notice typetender_notice
Sourcech-simap-public-projects
BuyerOffice fédéral des routes OFROU, Division Infrastructure routière Ouest, Filiale Estavayer-le-Lac
Buyer websitehttps://www.simap.ch/
City—

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Emailmarchespublics.estavayer@astra.admin.ch
Phone+41584618711
OrganizationOffice fédéral des routes OFROU, Division Infrastructure routière Ouest, Filiale Estavayer-le-Lac

Tags & Signals

environmental engineeringtunnel constructionenvironmental impact assessmentconstruction supervisioninfrastructure projectSwiss tunnelSIA phasesunderground construction

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