| Bridge Name: | Srijane Viaduct |
| Official Name: | Viadukt Srijane |
| Carries: | Road vehicles |
| Locale: | Central Croatia |
| Maint: | Hrvatske autoceste |
| Design: | Plate girder bridge |
| Mainspan: | 37 m |
| Length: | 504 m |
| Open: | 2007 |
| Toll: | charged as a part of A1 motorway toll |
| Coordinates: | 43.5173°N 16.7384°W |
The Srijane Viaduct, also known as Radovići Viaduct, is located between the Bisko and Blato na Cetini interchanges of the A1 motorway in Croatia. It is long plate girder reinforced concrete viaduct. At this location the motorway route follows a horizontal curve of radius. The viaduct comprises 13 spans. The viaduct and its approach embankments traverse a long valley. The viaduct is executed as two parallel structures, and each of the structures is wide.[1]
The viaduct was completed in 2007, and it represents the most significant structure on Dugopolje - Šestanovac section of the A1 motorway.[2]
Traffic is regularly counted and reported by Hrvatske autoceste, operator of the viaduct and the A1 motorway where the structure is located, and published by Hrvatske ceste.[3] Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the bridge carries substantial tourist traffic to the Adriatic resorts. The traffic count is performed using analysis of motorway toll ticket sales.
| Srijane Viaduct traffic volume | |||||||||
| align=center style="background:#f2f2f2;" | Road | align=center style="background:#f2f2f2;" | Counting site | align=center style="background:#f2f2f2;" | AADT | align=center style="background:#f2f2f2;" | ASDT | align=center style="background:#f2f2f2;" | Notes |
| A1 | 5911 Bisko south | align=center | 5,830 | align=center | 12,238 | Between Bisko and Blato na Cetini interchanges. |