The Vajont is a 34 km long torrent in the Northern Italian Province of Pordenone flowing from Friuli-Venezia Giulia (western Friuli) to eastern Veneto.

At the base of Mount Toc it mounds into the Piave river, just at the height of the municipality of Longarone, almost directly below the Vajont dam, in the province of Belluno.

[2] Meanwhile, on March 22, 1959, an accident at the Lago di Pontesei occurred, where a landslide of 3 million cubic meters of rock slipped into the lake, overwhelming a worker, whose body was never found; it was feared that something like this could happen in Vajont.

Damage also occurred in Soverzene, Ponte nelle Alpi, the Borgo Piave di Belluno up to Quero Vas about 50 km from the Vajont dam.

The Vajont stream and the bridge are mentioned in the diary of Erwin Rommel when, following the events of Battle of Caporetto the then lieutenant, in command of a detachment of Royal Württemberg mountain battalion ("Königlich Württembergisches Gebirgsbataillon"), chased the retreating Italian troops along the Cividale del Friuli - Longarone route.