Construction of the Gonna Flood Retention Basin

Summary

The tender concerns Lot 1 civil engineering works for constructing the Gonna flood retention basin. The scope includes general construction works, concrete and foundation works, site clearance and tree removal, archaeological documentation, relocation of drinking-water and wastewater pipelines, construction of a culvert structure, sheet-pile and bored-pile walls, embankments, roads, paving, landscaping and associated reinstatement works. The tender submission deadline is 6 October 2026 at 10:00. The indicative work schedule covers 2026–2028, with possible weather-dependent winter breaks.