 The old "Mulattiera" is still visible and in good condition, this was the path for horses before the construction of a road in 1770 by the adjacent municipalities.In 1812 the state (or canton) of Graubünden built a new road that is actually the one still in use for local traffic and across the pass, whereas the tunnel traffic uses a newly built road that avoids serpentines to allow a fluent traffic.The walls were built then as dry walls and were restored in 1995 because the road has still to work as a replacement for the tunnel if it has to be closed.