Accepting bidsDeadline in 36 daysSewage work

Conversion of the Oberseetal wastewater treatment plant into a pumping station – building and civil engineering works

Official title in German: Umbau ARA Oberseetal zu Pumpwerk - Baumeisterarbeiten u. Tiefbau

Key points at a glanceAI summary

Gemeindeverband ARA Oberseetal is procuring civil engineering and demolition works to replace its wastewater treatment plant with a pumping station connected to ARA Buholz, then repurpose the existing basins.

Deliverables
Build the pumping station, demolish buildings, convert existing basins and reinstate the surroundings in two stages.
Contract
Akkord contract paid at measured quantities and tendered unit prices; price adjustment follows SIA 123 Produktionskosten-Index.
Eligibility
No consortiums or partial bids; variants only with the original offer.
Award
Submit a technical report, construction schedule, sustainability and education-and-society documents.
Watch out
no bad-weather compensation is paid.

Documents for your bid

  • 00_Dokumentenübersicht Ausschreibungsunterlagen.pdfTender documents · 21 KB
  • Ausschreibungsunterlagen_SIMAP.zipTender documents · 64.5 MB

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Key dates

  1. 23.10.2026Published on simap.ch
  2. 06.11.2026Questions round
  3. 02.12.2026, 23:59Submission deadlineDeadline in 36 days

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Notice text

View on simap.ch

Unofficial reproduction. The German text below is taken unchanged from SIMAP notice no. 44570. Only the official notice is binding.

Die ARA Oberseetal wird aufgehoben und an die ARA Buholz angeschlossen. In der vorliegenden Submission werden die Baumeister-, Rückbau-, Tiefbau- und Umgebungsarbeiten für den Umbau der ARA Oberseetal zu einem Pumpwerk ausgeschrieben. Die Arbeiten erfolgen in 2 Etappen. In der ersten Etappe erfolgt ein Teilrückbau und der Bau des neuen Pumpwerks im Bestand. Nach Inbetriebnahme erfolgt der Rückbau der Gebäude, die Arbeiten zur Umnutzung der bestehenden Klärbecken zu Regen-/Havariebecken und der Umbau der Umgebung.

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