Pasarela del Bicentenario, pedestrian bridge in Zaragoza

Pasarela del Bicentenario is a pedestrian and bicycle bridge that crosses the Ebro River, connecting La Cartuja Baja with La Alfranca. The structure features a series of metal helices that form a tube-like shape, giving it a modern and innovative appearance.

The bridge opened in 2008 as part of the International Exposition held in Zaragoza that year. It was designed by professor Luis Javier Sanz Balduz to improve connections across the city and create new pathways for visitors and residents.

The name commemorates the Sieges of Zaragoza, the 1808-1809 resistance against Napoleonic troops, not a generic anniversary. The bridge lies on the Camino Natural de la Alfranca, the path linking the end of Paseo de Echegaray y Caballero with La Alfranca, seat of the CIAMA water and environment centre, which hosts exhibitions and congresses. The park's tourist train stopped at the bridge.

The bridge is reached on foot or by bike along the Camino Natural de la Alfranca, a route that starts at the end of Paseo de Echegaray y Caballero and leads to La Alfranca, seat of the CIAMA water and environment centre. The deck is a flat run of narrow wooden planks between low metal railings, with green tubular arches overhead. The park's tourist train also stopped at the bridge.

The bridge features an unusual spiral-shaped design made of metal helices that sets it apart from typical bridge structures. This innovative form was part of the 2008 Expo and makes it an architecturally interesting landmark in the cityscape.