D8 state road comprises Croatian section of
Adriatic Highway, and it runs from Pasjak border crossing to
Slovenia via
Rijeka,
Senj,
Zadar,
Šibenik,
Split,
Opuzen and
Dubrovnik to the border with Montenegro at Karasovici. Most of the D8 state road is still a two-lane road, excepting rare four-lane stretches. Total length of the road through Croatia is .