Cize–Bolozon viaduct

The Cize–Bolozon viaduct is a combination rail and vehicular viaduct crossing the Ain gorge in France. It is a structure that connects the communes of Cize and Bolozon in the Ain département.^[1][2]

Cize–Bolozon viaduct
A view of the viaduct from the southwest while crossed by an upper-level TGV
Coordinates	46°12′56″N 5°27′04″E
Carries	Ligne du Haut-Bugey Local road
Crosses	Ain gorge
Locale	France
Characteristics
Total length	273 metres (896 ft)
Height	73 metres (240 ft)
No. of spans	11
History
Architect	Jean-François Blassel
Opened	1875 (1875)
Location

In 1875, an original span built in the same location but was destroyed later in World War II.^[3][4] The viaduct was reconstructed as an urgent post-war project due to its position on a main line to Paris.^[5] It reopened in May 1950.^[1]

It has two different levels: the upper level is a railway while the lower carries road traffic. The railway was closed for reinforcement and restoration in 2005, and reopened in December 2010 as part of the Ligne du Haut-Bugey.^[6][7][8] The lower level is a local road from Poncin to Thoirette.

See also

• Cize-Bolozon station