| Country: | HRV |
| Type: | D |
| Route: | 9 |
| Length Km: | 10.9 |
| Length Round: | 1 |
| Map Custom: | yes |
| Terminus A: | Metković border crossing to Bosnia and Herzegovina |
| Junction: | D62 in Metković |
| Terminus B: | D8 near Opuzen |
| Counties: | Dubrovnik-Neretva |
| Cities: | Metković, Opuzen |
D9 is a state road connecting Metković border crossing to Čapljina and Mostar, Bosnia and Herzegovina and D8 state road south of Opuzen.[1] The road is 10.9km (06.8miles) long.[2]
The road also provides connection to A1 motorway Ploče interchange and A10 motorway Kula Norinska interchange via the D62 state road and cities of Metković and Opuzen.
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 regularly counted and reported by Hrvatske ceste, operator of the road.[4] Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the road carries substantial tourist traffic.
| D9 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 |
| D9 | 6103 Metković | align=center | 4,974 | align=center | 6,578 | Between the border crossing and D62 junction. | |||
| D9 | 6104 Kula Norinska | align=center | 9,192 | align=center | 13,498 | Adjacent to the L69012 junction. |