D406 branches off to the southwest from D8 near Prizna towards Prizna ferry port - ferry access to Žigljen, island of Pag (D106).

The road is 2.9 km long.

[1] As with all other state roads in Croatia, the D406 is also managed and maintained by Hrvatske ceste, state owned company.

[2] Traffic is not regularly counted on the road, however, Hrvatske ceste report number of vehicles using Prizna-Žigljen ferry line, connecting D406 to the D106 state road.

[3] Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the road connects to a number of summer resorts.