Deba-Mutriku zubia

The Deba-Mutriku bridge (Deba-Mutriku zubia) links the two coastal towns of Deba and Mutriku in Gipuzkoa, in the Basque Country. Spanning the mouth of the Deba River as it meets the Bay of Biscay, it has shaped this stretch of Basque coastline for more than a century and a half.

Where exactly is the bridge?

The bridge stands next to Deba's marina, close to the Agirre palace, joining the two riverbanks right where the Deba River empties into the sea. This spot has long been the natural crossing point between the coastal towns of Gipuzkoa.

What is the history behind it?

The bridge opened in 1866, completing the last stretch of the 19th-century coastal road connecting San Sebastián and Bilbao — a project that reshaped travel between the fishing towns of Gipuzkoa and Biscay. It originally had three stone arches plus a movable stone section that could be opened to let boats sail upriver into Deba's port; that movable part was dismantled in 1951 once river traffic upstream had dwindled.

When the new Sasiola bridge opened in 2006 to carry road traffic, the old Deba-Mutriku bridge was closed to vehicles and became a footbridge. In the early hours of 4-5 July 2018, one of its central piers suddenly settled, damaging the two central vaults: stones shifted and cracked, and the structure twisted out of shape. The bridge was closed for repairs and later reopened, once again linking the two towns.

What does the bridge look like?

It's a substantial stone masonry structure faced in grey limestone, roughly 106 metres long, with a main span of about 50 metres on the Deba side. The roadway is just under 6 metres wide (5.95 m), flanked by narrow 0.4-metre stone footpaths on each side. Sturdy piers and buttresses support its arched form, typical of the solid 19th-century engineering found across this part of the Basque coast.

Why is it worth a visit?

Beyond its role as a crossing, the bridge is a symbolic link between two fishing towns with a strong maritime identity. Walking across it gives views over the Deba estuary, the marina, and a coastline known for the flysch rock formations stretching between Zumaia, Deba and Mutriku — one of the most distinctive stretches of the Basque Coast. For visitors exploring both towns on foot, the bridge is the natural shortcut between Deba's old town and Mutriku, saving a longer inland detour.

Frequently Asked Questions

Can cars cross the Deba-Mutriku bridge? No. Since the Sasiola bridge opened in 2006, the Deba-Mutriku bridge carries pedestrian traffic only.

When was the bridge built? It opened in 1866 as the final stretch of the 19th-century coastal road linking San Sebastián and Bilbao.

Has the bridge ever been damaged? Yes. On the night of 4-5 July 2018, one of its central piers suddenly settled, damaging the middle section of the structure and requiring repair work.

How long is the bridge? It measures around 106 metres in length and just under 6 metres in width, with narrow footpaths on either side.