Highways in Croatia - State Roads

State Roads

State roads are defined by legislation as important routes for road traffic between various parts of the country. Classification of a road as a state road does not describe actual conditions of the road itself.

State roads in Croatia are assigned one, two or three digit numbers which generally comply with the following pattern (although there are some exceptions to the rules):

• Single digit numbers (1-9) are assigned to trunk roads, normally of considerable length, spanning between borders of various neighboring countries. An obvious exception to this is the D9 state road however it spans from Bosnia and Herzegovina border and the Adriatic Sea, along the southernmost portion of Pan-European Corridor Vc.
• Double digit numbers (20-70) are assigned to arterial roads on the mainland.
• 100s are assigned to island roads
• 200s are assigned to border crossing access roads
• 300s are assigned to junction roads, connecting towns or cities (but not other state roads) to motorways or other major roads. Notable exceptions to this are D307 and D310 state roads, although the D307 originally did not connect to the D29, but only to the A2 motorway.
• 400s are assigned to mainland port and airport access roads.
• 500s are assigned to connecting roads, connecting two different state roads. Notable exceptions to this rule are the D503 which connects to a port and the D516 which connects to a border crossing checkpoint.

At the moment the state roads in Croatia have a combined length of 6,819.7 kilometres (4,237.6 mi).