Viaduct over Ibaizabal River.
Galdakao, Spain
The viaduct over river Ibaizabal, included in the segment Lemoa-Galdakao of the Basque High Speed Rail network, has, at 78 meters the longest spans ever launched in Spain.
The bridge is 450 m long with seven spans 49.60 + 78.00 + 61.40 + 2x78.00 + 60.00 + 45.00 meters long each.
Construction is done by incrementally launching method.
The scope of SILGA was the full detail design of the viaduct, including temporary elements like the launching nose, and full assistance during construction.
