The contract with EUR 89.46 million (CHF95.37 million), for the Thalwil relief tunnel (diameter 6.60 m, length 2014.15 m) to transfer flood peaks of the Sihl river into Lake Zurich and thus protecting the lower Sihl valley and Zurich from extreme floods (Lot 1), has been awarded by the Arge Marti Entlastungsstollen Thalwil c/o Marti Tunnel AG from Moosseedorf.
The related tender documents are attached here and here.
For more details, please contact:
Baudirektion Kanton Zürich, AWEL Amt für Abfall, Wasser, Energie und Luft, attn Hannes Zotter, Zurich
– Tel: +41 43 259 55 85
– Email: firstname.lastname@example.org
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