Outline of the place:
Strategically, the Austro-Hungarian command needed to ensure that the belllunese valley could communicate rapidly and securely with the Vittoriese zone, meaning the lines immediately behind the frontline of Grappa with those of Piave.
Partly following the route of a steep medieval path, the Austrian Pioneers constructed a bold carriageway in only 100 days (between the 1st of February and the 1st of June 1918) with tunnels almost stacked on top of one another on five hairpin bends, a bold undertaking from an engineering point of view.
The road was of immense strategic importance to the occupying army: it was used to transport part of the artillery destined for the battle of Solstice and, only four months later, the troops rallied in the Quartier del Piave, otherwise trapped in a dead end without escape, used the road for a mass withdrawal.