The first stretch of road was opened in October 1897 up to the pass.

[2] At first, the road was shielded from the danger of avalanche by protective covers, but eventually a tunnel was built, and then a bridge over the Hölltobel.

In 1909 the road was finished into the Lech Valley in Tyrol.

Since 1948, funds from the Marshall Plan have been utilized to improve the road and make it safer from avalanches.

In 2000, plans were unveiled for a tunnel from Stuben to Zürs.