Caprigliola bridge, Reinforced concrete bridge in Aulla, Italy

The Caprigliola bridge was a road bridge over the Magra between Albiano and Caprigliola, in the municipality of Aulla. It had five shallow reinforced-concrete arches with spans of 51.15 metres, carried on four piers and two abutments, and a 7.20-metre deck with two cantilevered footpaths. It collapsed on 8 April 2020.

The original structure was built in 1908 by engineer Attilio Muggia with five arches and served the region for generations. German forces partially destroyed it during World War II, leading to reconstruction efforts afterward.

At the eastern end of the bridge stood the former Caprigliola-Albiano station on the disused Pontremoli line between Aulla and Santo Stefano di Magra. Nearby is the former toll office of the Grand Duchy of Tuscany, a reminder that the spot was once a border. Until the 19th century, crossing the Magra here depended on ferry boats.

The bridge collapsed on 8 April 2020 at 10:14, so it can no longer be crossed; the ruins lie in the Magra and were still blocking the riverbed months later, with the first flood on 2 October 2020 partly submerging them. Access to the site is from the SS 330 near the former Caprigliola-Albiano station, about 1 km from Santo Stefano di Magra and 7 km south of Aulla. Plans from December 2020 foresaw a new bridge of about 288 m length and 16.9 m width, starting on the west bank near the old crossing and ending in a new roundabout slightly north of the former junction.

The 1908 bridge was one of Italy's first reinforced-concrete road bridges, built by Attilio Muggia's firm using pneumatic caissons to cope with the poor riverbed. Its 1949 rebuild by Arrigo Caré and Giorgio Giannelli kept the original look but used three-hinged Maillart arches with Mesnager hinges, visible as tapered arch ends.