The Adriatic Highway (Croatian: Jadranska magistrala) is a road that stretches along the eastern coast of the Adriatic Sea and is part of the European route E65. The road passes principally through Croatia, with smaller stretches through Bosnia and Herzegovina and Montenegro. It is an undivided two-lane road for almost its entire length, with the exception of a short stretch through Zadar and a 24 kilometres (15 mi) dual-carriageway section from Plano (Trogir) to the southeast suburbs of Split. The dual carriageway is planned to be extended further southeast to Omiš. Completion of the Adriatic Ionian motorway is proposed in order to replace the Adriatic highway as a high-performance road transport route along the Adriatic coast.