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Hidden Gem

Woodland, Riverside, Valley

Walking, Cycling, Picnicking

Year round

Carnon Viaduct is a striking railway bridge near Truro, Cornwall, that carries the Maritime Line over the Carnon River valley. The current structure, completed in 1933, features nine stone arches and stands as a testament to early 20th-century engineering. It replaced an earlier viaduct designed by the famed engineer Isambard Kingdom Brunel, which opened in 1863 and was constructed with a timber deck supported by masonry piers. The original viaduct's stone piers remain visible alongside the present structure, offering a glimpse into the area's rich railway heritage. Spanning approximately 756 feet (230 meters) in length and rising to a height of about 96 feet (29 meters), Carnon Viaduct provides a vital link between Truro and Falmouth, offering passengers scenic views of the surrounding landscape.

10

3

3

3 day, 7 overnight

Native Grain, Rowe's Bakery​, Bango Kitchen​

Glamping 1970 American Airstream, Treguth Glamping, Cox Hill Glamping

Copy of View this gem on our app (Yard Sign) 2.JPEG

Where is Carnon Viaduct?
Cornwall contains this impressive structure spanning across the Carnon River valley near Truro. Standard passenger trains still rumble across the active route high above the floor.

What type of place is Carnon Viaduct?
Carnon Viaduct is a railway bridge near Truro in Cornwall.

When is the best time to visit Carnon Viaduct?
Year-round access means any season works perfectly well for a trip here. Golden morning light hits the granite faces beautifully, making early dawn an ideal moment for photography.

What can you do at Carnon Viaduct?
Walking along the muddy paths below the valley allows people to track the shadow of the massive structure. Cyclists also enjoy using the trails that run near the area, whilst others pack a lunch for an outdoor meal nearby.

How long should I spend at Carnon Viaduct?
Allocating about forty-five minutes provides plenty of time to view the stone arches and historical piers. A slightly longer stay makes sense if you plan to explore the surrounding footpaths thoroughly.

Where do I park at Carnon Viaduct?
Spaces for ten vehicles exist nearby, split into three day and seven overnight spots. Full details are available on the UK Hidden Gems app.

Where can I eat near Carnon Viaduct?
Rowe's Bakery and Bango Kitchen provide options alongside a place called Native Grain, offering three eateries altogether in the area. Full details are available on the UK Hidden Gems app.

Where can I stay near Carnon Viaduct?
Glamping 1970 American Airstream, Treguth Glamping, and Cox Hill Glamping provide three spots to overnight close to the valley. Full details are available on the UK Hidden Gems app.

1 July 2026 at 00:00:00

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