Duncan once stalled on this viaduct out of jealousy for not being polished. The Skarloey Railway viaduct appeared in the Railway Series books, The Little Old Engine and Gallant Old Engine. It appeared quite frequently in the television series. The viaduct is located near Rheneas.
Its architectural structure is similar to that of Dolgoch Viaduct on the Talyllyn Railway.
It returned in the eighteenth season episode, Duncan the Humbug.
It is not to be confused with Rheneas Bridge.