This significant bridge is situated in Asturias, in northern Spain and was inaugurated in June 2006. The main characteristics of the Navia River Viaduct are the two 160m central spans held up by two arches built on the prestressed deck. The arches are each composed of 17 pairs of parallel stay cables, which descend through the bridge deck to the piers at either end of the arches.

The bridge has 11 spans and is built with precast segments - making a finished length of 905.4m in total. The precast segments were placed using the cantilever method and by means of a self launching girder.

The deck was prestressed with more than 900t of post-tensioned steel, including external and internal BBR CONA tendons, and was undertaken with an hydraulic auto-propelled robot which placed the stressing jacks inside the deck.

The deck interior prestressing is made up of 356 BBR CONA 1906, 864 BBR CONA 2406 and 52 BBR CONA 3106 anchorages. Over the permanent piles there are 30 BBR CONA 2406 and 132 BBR CONA 705 anchorages. Alongside the two arches, there are 12 BBR CONA 4206 external prestressing tendons totaling 320m in length. Also, in the arches anchorage zone, there are a further 64 BBR CONA 2406 anchorages. The deck positioning was carried out using four 1700t vertical and eight 160t horizontal synchronized jacks, equipped with force and displacement instrumentation.

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