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Canal construction – Infrastructure renewal project: Main collector rehabilitation and modernisation 2026 Tender
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In context
This is a contract notice published by a utility covering construction and works. Delivery covers Germany (Europe). It is classified under Water against the sustainability taxonomy rather than matched on keywords.
This tender procures rehabilitation and renewal of a 1,067 m main sewage collector in Wiesbaden using trenchless GFK pipe technology, including 10 new concrete shafts and two 1,600 DN pipe drives under active railway operations. Bidders must be experienced in trenchless sewer rehabilitation, railway coordination, and complex urban infrastructure works under operational constraints.
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About this tender
The project involves the rehabilitation and renewal of the Hauptsammler Ost (East Main Collector) sewer in Wiesbaden, Germany. Starting from the stormwater overflow basin RÜ27, approximately 1,067 m of the existing main collector will be rehabilitated using trenchless methods (GFK/GRP pipe lining). The existing manholes will largely be renewed or removed and replaced with new cast-in-place concrete manholes. Additionally, the existing northern and southern rail crossings will be rehabilitated using GRP lining. …
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