Photo by Klaus Nahr
Steepest kilometer begins at km 2 (10.5%)
Wikipedia - Livigno Pass “Livigno Pass (Italian: Forcola di Livigno, Romansh: Fuorcla da Livign) (el. 2315 m.) is a high mountain pass in the Alps on the border between the canton of Graubünden in Switzerland and the Province of Sondrio in Italy. it connects Motta in Switzerland with Livigno in Italy.” Wikipedia - Livigno Pass
The first 25.7 km of this route overlaps with Bernina Pass.
PJAMM will document this climb in August, 2018. Until then, Strava members provide the following input:
Jan Waal - Q " Hello - is the segment Forcola di Livigno paved? Is the route safe to cycle? Thank you." A: "Yes, it was perfect."
Will Kersten " It is a nice paved road and safe to cycle. But Heavy" [note - he didn't finish the thought]
Corrado Lacoboni "Of what we did we all know asphalted"