AERA - Transport of wastewater from Ollon to the regional wastewater treatment plant - Reinforced concrete and masonry work
Official title in French: AERA - Transports des eaux usées d’Ollon à la STEP régionale - Travaux de béton armé et maçonnerie
Willi Ingénieurs SA is procuring reinforced-concrete and masonry works to renovate Ollon’s wastewater treatment plant as part of the wastewater transfer to the regional plant, while keeping the site operational.
- Deliverables
- Works include complex excavation below groundwater with sheet piles and major basin restructuring by concrete sawing.
- Eligibility
- Submit references for watertight reinforced concrete exposed to wastewater and constrained-access sawing and demolition.
- Watch out
- The plant remains operational; coordination with operators and other trades is imperative for service continuity and site safety.
Documents for your bid
- Travaux de béton armé et maçonnerie.zipTender documents · 64.6 MB
Key dates
- 08.10.2026Published on simap.ch
- 23.10.2026Questions round
- 12.11.2026, 15:30Submission deadlineDeadline in 16 days
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Notice text
View on simap.ch
Unofficial reproduction. The French text below is taken unchanged from SIMAP notice no. 45511. Only the official notice is binding.
Ce marché concerne la réfection de la STEP d’Ollon, à réaliser sur un site maintenu en exploitation. Les travaux incluent le démontage d'équipements, des terrassements complexes sous nappe (palplanches), et la restructuration lourde des bassins par sciage de béton. Une coordination rigoureuse avec les exploitants et les autres corps d'état (électromécanique, serrurerie) est impérative pour garantir la continuité du service et la sécurité du site