Before the Eiffel Tower, Gustave Eiffel was already putting his name to a red iron giant: 565 metres long, 122 metres above the Truyère. You can take it in from the D909, the A75 or by boat.
Before the Eiffel Tower, there was Garabit. The viaduct looms up round a bend on the A75, huge, painted red, braced in an arch over the Truyère gorges. The first time you see it, you hit the brakes. Good news: the Garabit motorway rest area is made for exactly that.
The project came from Léon Boyer, an engineer from the Ponts et Chaussées (the French state civil engineering corps), who handed in his plans in 1879 to carry the railway over the valley. Construction was entrusted to Gustave Eiffel's company: work began in 1880, the central arch was closed in April 1884, the structure was finished in September 1884 and the line opened in November 1888. At the time, it was the highest viaduct in the world: 122 metres above the river, 565 metres long, and a central arch with a 165-metre span that remained the largest in the world until 1886.
The deck and its lattice piers are made of puddled iron, riveted together, between two small granite masonry approach viaducts. Since the Grandval dam was filled in 1959, a lake has stretched beneath the arch, and the deck stands about 95 metres above the water. The structure has been listed as a historic monument since 1965 and classified (the highest level of protection) since 2017, and its current colour, a red known as “rouge Gauguin” (Gauguin red), dates from the painting campaigns carried out from 1992 to 1998.
Getting there
- From Saint-Flour: a quarter of an hour south on the A75 (exit 30 or 31), then follow signs for Garabit.
- The D909 road bridge, which crosses the Truyère at Garabit, gives you a first viewpoint. To get closer to the viaduct, take the D13 from that bridge, towards Ruynes-en-Margeride.
Good to know
- At night, the viaduct is lit up. 2026 schedule: every evening from 15 March to 11 November, then Friday to Sunday from 18:30 to 21:00 until 14 March.
- In season, boat trips on the Lac de Garabit-Grandval pass under the arch: the one viewpoint you can't get from the road.
- The viaduct is still a railway structure: climbing onto it is not allowed. The area around it is open access and free, with a permanent open-air exhibition at the foot of the viaduct. In summer, guided tours leave from the car park on the RD 909, on the bank opposite the Garabit Hôtel (in 2026, Tuesdays at 18:00, €5 per adult).
What you will find
- A red iron giant 565 metres long, 122 metres above the Truyère
- The 165-metre central arch, the longest span in the world until 1886
- The viaduct lit up at nightfall: in 2026, every evening from mid-March to mid-November
- The Lac de Grandval, stretching beneath the deck since it was filled in 1959
Local tip
Go under the arch by boat: in season, the trips on the Lac de Grandval give you the one angle you can't get from the road.
Good to know
- On the A75, take exit 30 or 31, then follow signs for Garabit: a quarter of an hour from Saint-Flour.
- Two ways to see it: from the D909 road bridge, or closer up via the D13, towards Ruynes-en-Margeride.
- No going up on the viaduct, it's a railway structure: you admire it from below, with a permanent open-air exhibition at its foot.
Practical information
- Best time to go
- At nightfall, when the viaduct lights up: in 2026, every evening from 15 March to 11 November.
- Getting there
- The surroundings are open access and free all year round, with a permanent open-air exhibition at the foot of the viaduct. Climbing onto the structure is not allowed: it is still a railway viaduct.
- Parking
- Car park on the RD 909, on the bank opposite the Garabit Hôtel.
