A SNCF TGV Duplex trainset is crossing the Cize - Bolozon viaduct over the Ain river. The viaduct is part of the Haut-Bugey line, which was reopened in December 2010 for TGV services between Geneva and Paris.
The Cize–Bolozon viaduct is a road–rail bridge crossing the Ain gorge in France. The original viaduct, constructed in 1875, was destroyed during World War II. The current viaduct opened in 1950 and carries rail traffic on the top deck and road traffic on the lower one.
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