Rainwater Drainage System in Alfaião

Summary

The tender concerns public works for a rainwater drainage system in Alfaião, including the construction and reshaping of roadside ditches, placement of a 10 cm crushed aggregate layer, construction of triangular concrete ditches with a 1.20 m opening, installation of 315 mm culverts, pavement excavation and reinstatement, a 0.15 m crushed aggregate base compacted to 95% of maximum density, and installation of 0.11 m grey granite cubes on a 0.10 m sand layer. The estimated contract value is EUR 55,485.65 excluding VAT, the execution period is 90 days, and price is the only award criterion. The tender is submitted electronically by 30 September 2026 at 23:59; variants are not permitted and the tender must remain valid for 66 days. A 10% performance guarantee is required. The successful tenderer must also provide the required construction licence or certificate, technical staff information, safety and health documentation, insurance evidence and waste-management documentation.