The Cize–Bolozon viaduct is a
combination rail and vehicular viaduct
A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide ...
crossing the
Ain gorge in
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
. It is a structure that connects the communes of
Cize and
Bolozon in the
Ain ''département''.
In 1875, an original span built in the same location but was destroyed later in World War II. The viaduct was reconstructed as an urgent post-war project due to its position on a main line to
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
. It reopened in May 1950.
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 .
The lower level is a local road from
Poncin to
Thoirette.
See also
*
Cize-Bolozon station
References
External links
Details of the Haut-Bugey line, showing the viaduct
{{DEFAULTSORT:Cize-Bolozon viaduct
Railway bridges in France
Bridges completed in 1875
Viaducts in France
Bridges completed in 1950