| Country: | HRV |
| Type: | D |
| Route: | 123 |
| Length Km: | 1.1 |
| Length Round: | 1 |
| Terminus A: | Sobra ferry port |
| Terminus B: | D120 in Sobra |
| Counties: | Dubrovnik-Neretva |
D123 is a state road on island of Mljet in Croatia connecting the main state road on the island (D120) to Sobra ferry port, from where Jadrolinija ferries fly to the mainland, docking in Prapratno and the D416 state road.[1] The road is 1.1km (00.7miles) long.[2]
The road, as well as all other state roads in Croatia, is managed and maintained by Hrvatske ceste, a state-owned company.[3]
Traffic is not regularly counted on the road, however, Hrvatske ceste report number of vehicles using Prapratno-Sobra ferry line, connecting the D123 and D416 state road.[4] 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.
| D123 traffic volume | |||||||||
| align=center bgcolor=00c0f0 | Road | align=center bgcolor=00c0f0 | Counting site | align=center bgcolor=00c0f0 | AADT | align=center bgcolor=00c0f0 | ASDT | align=center bgcolor=00c0f0 | Notes |
| D123 | 8311 Prapratno-Sobra | align=center | 96 | align=center | 237 | Vehicles using Prapratno-Sobra ferry line. |
| --NOTE: Junctions, populated areas and toll plazas are listed here.--> | |||
|---|---|---|---|
| D123 junctions/populated areas | |||
| align=center bgcolor=00c0f0 | Type | align=center bgcolor=00c0f0 | Slip roads/Notes |
| Sobra ferry port – access to the mainland port of Prapratno (by Jadrolinija) and the D416. The northern terminus of the road. | |||
| Sobra D120 to Pomena, Polače and Mljet National Park (to the west) and Saplunara (to the east). The southern terminus of the road. |