D100 road

D100 is a state road in Croatia connecting Porozina ferry port - ferry access to Brestova on the mainland (via Jadrolinija) (D402) and D101 state road to Cres and Mali Lošinj. The D100 road is carried between Cres and Lošinj islands via a swing bridge in Osor across a 12 m wide strait. The road is 81.0 km long.

The road, as well as all other state roads in Croatia, is managed and maintained by Hrvatske ceste, a state-owned company.

Traffic volume
Traffic is regularly counted and reported by Hrvatske ceste, operator of the road. Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the road carrying substantial tourist traffic along Cres and Lošinj.