Viaduc d'Ormaiztegi

43°02′33.07″N 02°15′32.86″W / 43.0425194°N 2.2591278°W / 43.0425194; -2.2591278LocaleOrmaiztegi, Gipuzkoa, Basque Country, SpainCharacteristicsDesignMultiple-span Deck truss bridge, Lattice girder, viaduct, bridgeMaterialWrought iron^[1]Total length291.5 m (956 ft)Height35 m (115 ft)No. of spans53.2 m (175 ft),
3×60.5 m (198 ft),
53.2 m (175 ft)Design life155 yearsHistoryDesignerAlexandre LavalleyConstructed bySociété de construction des BatignollesConstruction end1863Inaugurated1864Location

The Viaduc d'Ormaiztegi or Ormaiztegi Viaduct is a lattice girder viaduct in Ormaiztegi, Spain that was formerly used by a railroad to link a line from Madrid to Irun. It is now considered a historical monument.

The viaduct was designed by French engineer Alexandre Lavalley, and construction was completed in 1863.^[2]

The viaduct was destroyed during the Spanish Civil War and was reconstructed in 1940.

In 1996, it ceased to be used and was considered obsolete. A modern viaduct was built nearby. To prevent its demolition, it was declared a historical monument, since after more than 130 years, it has been considered a symbol of Ormaiztegi.

The viaduct has a length of 291.5 metres (956 ft) and a height of 35 metres (115 ft) at its highest point.